how do scientist develop scientific explanations about subjects that are impossible to study through controlled experiments?

Solve for x. Show your work.- x < -12 Why did roosevelt want the panama canal to be constructed? Wich word is an example of an iambic a) happy b) daybreak c)inspire d) clever If a sound increases 5 dB, the sound becomes _______ times louder. If a flower has long pedicels or filaments, flowers before leaves grow and has lots of pollen, what can you infer about its most likely pollination method? find the area and circumference of a circle with radius 4 in. What happens to the brightness of bulb a when the switch is closed and bulb b lights up? What kind of listening involves imagining yourself in the other persons position so you can better understand what he or she is thinking?empatheticreflectiveappreciativecritical What is the concentration (m) of ch3oh in a solution prepared by dissolving 16.8 g of ch3oh in sufficient water to give exactly 230 ml of solution? (tcob.if today you put $10,000 into an account paying 10% annually, how much will there be in the account after 5 years? show your work. Mount Rushmore is a sculpture that was carved using a model with a scale of 1 in :1 ft. If the model of George Washingtons face was 5 ft, how tall was the face on the actual sculpture? a. 5 ft c. 60 ft b. 40 ft d. 72 ft For a newborn weighing 1 kg, what dose of 1:10,000 (0.1 mg/ml) concentration of intravenous epinephrine is indicated explain how we know that ancient civilizations knew of and were concerned of infectious diseases Identify the complete predicate in the following sentence: "Marcia hopes to leave before five o'clock." Lous Shoes is having its annual Flag Day Sale and is offering a 25% discount on all regularly priced shoes. Kayla spends $13.50 buying sandals and sneakers. Determine which equation represents how much Kayla will spend on sandals after the discount. ----------HELP WITH 3 QUESTIONS FOR 30 POINTS!!!---------How has the global marketplace used emerging technologies to expand businesses? Increasing the number of employees it takes to complete a task Operating more inefficiently Spending more time completing a task Making communications and operations more efficient What should a health care worker do with bed sheets that are soaked with blood? PLZZ HELP!! A spherical ball just fits inside a cylindrical can, 16 centimeters tall, with a diameter of 16 centimeters. Which expression gives the volume of the sphere in cubic centimeters? What type of physical weathering is caused when rocks scrape together, causing small pieces to break off? i need help with this one! Steam Workshop Downloader