Scientists and engineers are studying ways to make artificial muscles out of carbon nanotubes. These muscles are lightweight and can handle very high temperatures. They could be used in robots, but not in humans. What is the most likely way these muscles could lead to additional scientific progress?

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

d) a person who learns about the world by observing it.

explanation:

scientist are people who discover why and how things are done and made in the world.