Which of the following best explains the importance of Earth's crust to living organisms?
a. The continental crust allowed the evolution of life on land,
b. The crust provides raw materials necessary for life.
C. The crust allowed the formation of fossil fuels.
d. The rock cycle recycles sedimentary rocks formed from animal shells.
Please select the best answer from the choices provided
О
А

An apple is falling from a tree. disregarding air resistance, which diagram shows the free-body diagram of the force or forces acting on the apple?

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.