Q: What form of energy is light? Choices: - hydro - seismic - mechanical - electromagnetic A:
electromagnetic

Q: What theory explains most of the features of earth's surface? Choices: - Big Bang theory - flat earth theory - string theory - plate tectonics A:
plate tectonics

Q: Q: How many bones does the mammalian middle ear have? Choices: - two - twelve - four - three A:
A: three

Question: Q: Why does water infiltrate the ground? Choices: - gravity - prolonged drought conditions - run-off from flooding - because soil and rocks are porous A:
Answer: because soil and rocks are porous

*Question*
Q: Green plants known as producers provide basic food supply for what besides themselves? Choices: - minerals - air - water - animals A:
**Answer**
animals

(Q).
Q: Elements involved in nuclear reactions are what? Choices: - detectable - inert - static - radioactive A:
(A).
radioactive