Rainwater becomes somewhat acidic as a result of the air's carbon dioxide dissolving in it. Weathering can be brought on by a reaction between precipitation and the minerals in the rock. Therefore, choice A is right.
What Chemical weathering is the breakdown of rocks?Chemical Weathering Rocks and soil go through chemical weathering, which changes their molecular makeup.
As an illustration, the process of carbonation occurs when water and carbon dioxide from the air or soil combine on occasion. Thus, carbonic acid is created, a weak acid that can dissolve rock.
Chemical weathering is the process by which the minerals in a rock are altered by chemicals in rainwater.
Therefore, Chemical weathering is the breakdown of rocks, soils, and minerals through atmospheric or biologically produced chemicals
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Answer: A
Explanation:
got it right on edge
2 points
The EPA sets national air quality standards for common air pollutants. The
graph shows the change in the concentrations of these pollutants over time.
Which pollutant have the air quality standards had the greatest impact on?
Monitored concentrations
of pollutants
PM
Normaland Concert
1995
199 200 2005 2010
Year
O A. Ozone
B. NO
OC. PMO
O D. Lead
Answer:D lead
Explanation:
Based on the graph, it appears that the air quality standards have had the greatest impact on lead.
What is National air quality?National air quality refers to the level of pollution in the air across an entire nation.
The graph shows a significant decrease in lead concentrations since 1990 when the EPA began regulating lead emissions. The other pollutants, while still showing improvement, do not have as drastic of a decrease as lead.
The graph provided shows the change in concentrations of common air pollutants over time. The pollutant that stands out the most in the graph is PM (particulate matter), as it shows a significant decrease in concentrations over time.
This suggests that the air quality standards set by the EPA have had a positive impact on reducing PM concentrations in the air. Ozone, NO (nitrogen oxide), and lead also show some level of decrease in concentrations over time, but the decrease is not as significant as that seen with PM.
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How does Keplers third law compare the periods and orbital radii of two planets with a solar system?
-the square of the ratio of the periods equals the cube of the ratio of the radii
-the square of the ratio of the periods equals the ration of the radii
-the ratio of the periods equals the square of the ratio of the radii
-the cube of the ratio of the periods equals the square of the ratio of the radii
Answer:
The square of the ratio of the periods equals the cube of the ratio of radii.
Explanation:
German astronomer Johannes Kepler who lived from 1571-1630, gave the three descriptive laws called Kepler's law. He derived this law after he had study and make observations of planetary motion done by Tycho Brahe.
The Kepler's third laws state that the square ratios of the period equals the cube ratio of the distance or radii.
From Kepler's third law, the square of the ratio of the periods equals the cube of the ratio of the radii.
Kepler's third law states that the ratio of the square of an object's orbital period with the cube of the semi-major axis of its orbit is the same for all objects orbiting the same primary.
The law is simplified using mathematical formula as follows;
T² ∝ R³
[tex](\frac{T_2}{T_1})^2 = (\frac{R_2}{R_1} )^3[/tex]
where;
T is the orbital period of the planetR is the radius of the planetThus, we can conclude that from the Kepler's third law, the square of the ratio of the periods equals the cube of the ratio of the radii.
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What is responsible for producing energy in both plant and animal cell?
Which of the following plant adaptations allows plants to use animals to transport their seeds to new locations
A. Large Leaves
B. Strong Stems
C. Sweet Fruit
D. Deep Roots
Answer: C Sweet Fruit
The plant adaptations allow plants to use animals to transport their seeds to new locations is sweet fruit. The correct option is C.
What is adaptation?Adaptation is a type of changes or acceptance of the body according to the environment and surroundings for better and easy survival. Adaptation can be for short time or long time.
Animals are important factor for the pollination of flowers and transportation of seeds to new places and in increasing the population of the vegetation.
Animals most probably eats sweet fruits, and when they eat these fruits their seeds are to fall into ground and grow new saplings. They take fruits with them to different places, which also propagate the plat to different places.
Thus, the correct option is C. sweet fruit.
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What process leads to deforestation and increased erosion? mining reforestation desertification urbanization
Answer:
The correct answer is (A) MINING
Explanation:
I just took the test and got it right on edge
The process that leads to deforestation and increased erosion is mining. Find more explanation on mining below.
What is mining?Mining is the process or activity of removing solid valuables from the earth.
During the mining process, solid parts of the Earth crust are removed so as to reach the minerals beneath it.
This leads to the deforestation i.e. removal of trees without replacement and increased erosion due to exposure to agents of erosion.
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1. what is the optimal pH for pepsin ?
2. What is the optimal pH for lipase?
3. Do you think lipase is an enzyme that is found in the stomach ?
The optimal pH for pepsin is 1.5 and lipase has an optimal pH around 7-8. Lipase is not typically found in the stomach.
Explanation:The optimal pH for pepsin, the main digestive enzyme in the stomach, is 1.5. Pepsin works best in the acidic environment (low pH) of the stomach, where it helps break down proteins into smaller molecules.
On the other hand, lipase is an enzyme that primarily functions in the small intestine. The optimal pH for lipase is around 7-8, which is considered neutral to slightly alkaline.
No, lipase is not typically found in the stomach. It is primarily produced and secreted by the pancreas, and its main role is to break down fats (lipids) into smaller components that can be easily absorbed and utilized by the body.
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Pepsin's optimal pH is 2.0 for protein digestion in the stomach. Lipase's optimal pH is 8.0, active in the small intestine.
The optimal pH for enzymes can vary significantly, and it's important for their activity in different parts of the body:
1. Pepsin is an enzyme that works in the stomach, and its optimal pH is approximately 2.0. This highly acidic environment is conducive to the enzyme's activity in breaking down proteins.
2. Lipase, on the other hand, has an optimal pH of around 8.0, which is more alkaline. This enzyme is not typically found in the stomach. Instead, lipase primarily functions in the pancreas and the small intestine, where it aids in the digestion of fats.
3. Given that the stomach is a highly acidic environment, lipase would not be as active there due to its preference for a more neutral to alkaline pH. Therefore, it's not considered a major enzyme of the stomach. The primary lipase for digestion, pancreatic lipase, operates in the small intestine where the conditions are more suitable for its activity.
Enzymes like pepsin and lipase are crucial for digestion, each working best under specific pH conditions that match their location in the digestive system.
ecosystems can be described by the types of
Answer:what type of what
Explanation:
Answer:
All types of ecosystems fall into one of two categories: terrestrial and aquatic.
Explanation:
Terrestrial ecosystems are land-based, while aquatic are water-based.
Mice collected from the Sonoran desert have two phenotypes, dark(D) and light (d). The mice shown below were collected in a trap. Calculate the frequency of individuals that display the recessive trait(dd)
The branch of biology which deals with genes and inheritance is called genetics.
The correct answer is 71%.
The information in the question is not complete, the picture is absent here.
After finding the picture in the other answer.
The number of light color mice is 21 that have the gene "dd" and the number of the dark color mouse is 6 that have gene "DD".
The percentage is as follows:-
21-6=15
[tex]\frac{15}{21}*100 = 71%[/tex]%
Hence, the correct answer is 71%.
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We need more information to calculate the frequency of individuals that display the recessive trait (dd) in the mice collected from the Sonoran desert.
Explanation:To calculate the frequency of individuals that display the recessive trait (dd), we need to know the phenotypic ratio of the mice collected from the Sonoran desert. The information provided in the question does not give the phenotypic ratio for the dark (D) and light (d) phenotypes. Without this ratio, we cannot accurately calculate the frequency of the recessive trait. To answer the question, we need more information.
Water pollution can impact our health as well as the health of the environment. Which of the following human activities contributes most directly to
the loss of water quality
Answer:
C. Application of toxic fertilizers to crops
Explanation:
Water pollution is defined as the contamination of water due to several human activities. Several causes of water pollution include use of fertlizers, construction of turbine, industrial waste, and sewage dumping.
Use of toxic fertizers directly affects the loss of water quality as fertilizers and pesticides are made up of chemicals such as phosphate and ammonia. The fertilizers and pesticides precipitate through the soil and mix with ground water that directly affect the quality of water. Residues of chemicals mix with river water due to flooding, excess irrigation, heavy rainfall and enter in the food chain. These chemicals are then have lethal effect in living organisms.
Hence, the correct answer is C.
Which is an example of a fractional scale?
Answer:
Fractional or Ratio Scale: Afractional scale map shows the fraction of an object or land feature on the map. This type uses a set of numbers that represents the object or a landmark. As an example on the left photo, the orange-shadedscale represents a 2/3 fractional scale. 2.
I need help, please! You can answer whichever one you want. Thank you!
Answer:
denamrk is a very populosus country
help now will give brainlest 100 points Rebekah is studying lichens growing on a cooled lava field. What is Rebekah most likely researching? secondary succession climax communities pioneer species disturbances
Answer:
The Answer Is c
Explanation:
Answer:
She is studying pioneer species.
Explanation:
The lichen is a hardy species and they colonize on disrupted ecosystems, such as a lava field.
According to the Article, why is the Wallace's giant bee in danger of losing its home?
A
Because the rare bee can be sold online for thousands of dollars
Because the bee has been making its nests inside termite nests
Because Wallace's giant bee hunters are now traveling to Indonesia
D
Because Indonesia has lost nearly 15 percent of its trees since 2001
Answer:
D
Because Indonesia has lost nearly 15 percent of its trees since 2001
Explanation:
The Wallace is known to be the largest bee in the world. It is also known to have its nests high up on trees and they are commonly in Indonesia.
The bees however are facing threats of extinction due to deforestation and urbanization. Indonesia is known to have lost nearly 15 percent of its trees since 2001 which is the bees habitat.
In order for an statonary object to move, an unbalnced force must act upon it.
True
False
Answer:
true
Explanation:
any force can be added to make a stationary object move. but if it was balanced then it would just stay in position
if there is 100N of force going towards the object, and you are pushing the object with 100N force. It will not move.
Final answer:
The statement that an unbalanced force must act upon a stationary object to set it into motion is true according to Newton's first law of motion. An object at rest remains at rest, while an object in motion maintains its velocity unless acted upon by an unbalanced force.
Explanation:
The statement that an unbalanced force must act upon a stationary object to set it into motion is True. According to Newton's first law of motion, also known as the law of inertia, an object will not change its state of motion (i.e., it will not accelerate) unless an unbalanced force acts upon it. This means that if an object is at rest, it will stay at rest until a force that is greater than the sum of all opposing forces is applied to it. Contrary to misconceptions, a force can do work even if an object doesn't move, for instance if you're pushing against a wall with a force, work is being done on a molecular level, although there's no macroscopic movement.
When two unequal forces act on an object, the object will move in the direction of the net or resultant force, which is the vector sum of all the forces acting upon it. If this net force is zero, the object will remain stationary or continue to move at a constant velocity. This is a fundamental concept in classical mechanics.
When the moon moves directly between the sun and Earth and casts its shadow over part of Earth, you are
seeing a:
A full moon
B solar eclipse
Clunar eclipse
D waxing crescent moon
Answer:
B solar eclipse
Explanation:
Based on the following pedigree, how is the trait being inherited?
A. sex-linked inheritance
B. complete dominance
C. codominance
D. multiple alleles
Answer:
The correct answer is option B. "complete dominance".
Explanation:
Widow's peak is a trait characterized by the growth of a hairline in the center of the forehead. By looking at the pedigree we can conclude that widow's peak has no sex-linked inheritance because there is father-to-son transmission. There is no codominance or multiple alleles inheritance neither, because there is no slight differences in the trait (people either have or not have widow's peak). We can conclude that widow's peak have a complete dominance inheritance, because in the case where both parents have widow's peak they have a female daughter with no widow's peak. This means that both parents were heterozygous of the widow's peak allele, and since both expressed the trait we can conclude that it is completely dominant.
Type your response in the box.
An invasive species is a non-native species that lives in a region. Human activity has accidentally or intentionally
introduced many invasive species into ecosystems. Name two human activities that could contribute to the
introduction of invasive species. Explain your response.
Answer:
Explanation:
Many non-native plants are introduced through people dumping their aquariums into bodies of water
People who release non-native animals from captivity (Fish are a big one)
people who bring soil on their boots back from traveling to a different country my introduce non-native bacteria cultures
Answer:
Human travel can lead to an increased risk of invasive species. Native species—both animals and plants—can stow away on cars, trains, boats, and airplanes that bring them to another ecosystem. Climate change also can play a role. Human activity causes increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn creates an increase in global temperatures. Because all species are adapted to a specific climate, climate changes can result in non-native species spreading into other ecosystems.
Explanation:
i am doing the same lesson too:)
which of the following is not recycle in the biosphere
A: energy
b:nitrogen
c:water
d:carbon
Among the options, energy is not recycled in the biosphere. While matter like nitrogen, water, and carbon is cycled within the biosphere, energy flows one-way and is not reused but lost as heat.
Explanation:In the biosphere, energy is the only component among those listed that is not cycled back and reused. Both matter and energy flow into the biosphere. Matter is cycled within and between ecosystems, such as through the carbon, nitrogen, and water cycles. Energy, however, is not recycled and flows in one direction. Sunlight is the initial source of energy for almost all life on Earth. It is converted to chemical energy by photosynthetic organisms and then passed on to consumers through food chains. This energy is not recycled but lost as heat as it passes through the food chain.
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HELP ASAP!! 68 points!!
Which of the following refers to the small irregularities on a tool that happen every time a tool is used?
A.
slipped mark
OB. accidental characteristics
O C. rifling
OD. pitch
O E. class characteristics
Answer: OB. Accidental Characteristics
Explanation: Physical markings and features in a material that are acquired by wear or by some accidental or other non-repeatable circumstance during manufacture. For example, glass that is made by pouring molten material into a mould may develop bubbles which would be considered an accidental characteristic.
Answer the first question please!
Answer:
hunger, thirst, sleepiness
Answer:
hunger thirst sleepiness
Explanation:
sry if wrong
Genetically engineered bacteria are being developed to produce alternative fuels.
Please select the best answer from the choices provided
True or false
Answer:
True
Explanation:
Yes this is true due to advancements in genetic engineering.
A bacterium was transformed by scientists into a plant with the main purpose of the production of biofuel. The microorganism was expelled of its fatty acid but this synthetic route of extraction and purification is however very expensive.
The production of this fuel has several problems such as insufficient rates to meet the production rates of demand for biofuel while being competitive with oil and other forms of biofuel.
Which of these diseases can be spread?
Malaria
Cancer
Diabetes
Parkinson's Disease
Answer:
Malaria is the correct answer.
Explanation:
The rest are all diseases that are not able to be spread, but malaria can be spread from person to person due to an infected mosquito.
How does a moth obtain resources?
Answer:It uses its mouth to eat food and its legs to grab things.
Explanation:
Answer:
The moths have to find nectar, find mates and a plant to lay the eggs on. These plants are dispersed so the moths have to fly considerable distances to find them. Fuel for flight comes from nectar initially but then the moth switches to lipids to fuel flight.
Explanation:
thats what they do.....
Describe the effect of land development on biodiversity?
Explanation:
The effect of land development on biodiversity has resulted in the habitat destroyed, the ecosystem is destroyed, species extinctions, and overexploited.An increase in urbanization, human activities is the main cause of land development and this has affected biodiversity.development in land includes activities such as clearing of land, increasing the intensity of a landscape, removal of vegetation, filling of the land, grading, construction, dredging has resulted in the loss of wildlife, affected the biota, threatened the ecosystems, species.Please help
Gravity in Space? Olivia asked her friends what they know about gravity in space. this is what they said:
Justin: There is no gravity in space.
Taylor: Gravity only exists on planets.
Juanita: Gravity is a force that exists between all objects that have mass even in space!
Which friend do you agree with the most? Explain why you agree.
Answer: Juanita - Gravity is a force that exists between all objects that have mass even in space!
Explanation:
It sounds like the question is asking for your opinion and explanation on what you know about gravity.
To help you out a little bit, here’s some examples of gravity:
Gravity is the force in which pulls objects together. The force of gravity keeps all of the planets in orbit around the sun. Anything that has mass also has gravity. Objects with more mass have more gravity.
Hope this helps :)
In order for translation to start, four components need to be put together. These are
A. small ribosomal subunit, large ribosomal subunit, initiator tRNA with Methionine, mRNA
B. DNA, mRNA, tRNA, rRNA
C. Ribosome, nucleus, RNA Polymerase II, start codon
D. helicase, SSBP's, Primase, DNA polymerase III,
Which of the graphs below best illustrates homeostasis? Graph A Graph B Graph C Graph D
The graphs below best illustrate homeostasis in - graph D as internal temperature maintains equilibrium and shows very little fluctuation with change in external temperature.
Homeostasis is the state of regulating the internal environment including internal, physical, and chemical conditions in response to the change in the external environment by living systems.
This regulates various variables such as body temperature and fluid balance, being kept within a certain homeostatic range.Any self-regulating process involves maintaining stability while regulating to conditions that are best for its survival.In this graph, graph D shows very minimal change and maintains a normal body temperature range even there is fluctuation in external temperature.
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Graph D indicates homeostasis due to no change in the temperature.
Graph D indicates homeostasis because there is very less or no fluctuation occurs in the internal temperature as compared to the temperature of the external environment. There is a great change occur in the temperature of the external environment but the body maintain the internal temperature same which shows us the property of homeostasis so we can conclude that graph D shows the property of homeostasis.
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If the bird population were to be wiped out due to disease, how would this affect the evolution of beetle coloration?
Answer:
The population of the Beatles would grow and eventually lead to overpopulation.
Two structures play an important role in the way that birds digest food.
is a muscular structure that grinds food into small pieces.
temporarily stores food before it enters the stomach.
Answer:
Gizzard and crop
Explanation:
I just answered that question.
Electromagnetic waves are examples of ____ waves. A. Longitudinal waves B sound waves C. Surface waves D. Transverse waves
Answer:
D. Transverse waves
Explanation:
Ocean waves are also transverse, and these are used for many recreational activities such as surfing and swimming. They can also be used to generate renewable electricity from the wave motion.
--Hops