Explain how changing the amount of greenhouse gases in the atmosphere affects the flow of heat out of Earth's atmosphere.

This drawing shows a human body system. what is the primary function of this body system?

What is the mass of phosphorous in a 51-kg person

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.