If erosion causes silts and mud to be transported, then erosion causes silts and mud to be what? Answer choices: - flooding - transported - Sediment - stabilized - storing water - rivers - ignored - unmoved
transported

If mutation is the basis for natural selection, then what is the basis for natural selection? Answer choices: - animals - Artificial construct - stasis - root growth - mutation - magic - trees - competition
mutation

Q: If fire converts fuel into light and heat energy, then fire converts fuel into what? Answer choices: - burning coal - fusion and heat energy - heating liquids - solid, liquid, gas - hydrogen and oxygen - light and ice energy - light and heat energy - heat and cold energy
A: light and heat energy

Question: If playing is just one of many ways that mammals and other animals learn how to act, then what is one of the ways that mammals and other animals learn how to act? Answer choices: - sleeping - Movement - mating - exercise - eating - sound - playing - motion
Answer: playing

*Question*
If coffee stimulates the central nervous system, then what stimulates the central nervous system? Answer choices: - exercise - blood - rice - coffee - A drug. - a chime - ice - sweating
**Answer**
coffee

(Q).
If wind causes natural processes in the soil to happen, then wind causes what kind of process in the soil? Answer choices: - cycles - friction - kinetic - heat - unnatural - volcanic - bacterial - natural
(A).
natural