Q: Supercontinents have formed at least how many times in earth history? Choices: - twenty - nine - two - five A:
five

Q: What part of the cell does cellular respiration occur? Choices: - glucose - proton - nuclei - mitochondria A:
mitochondria

Q: Q: What do animals store with the help of saturated fatty acids? Choices: - oxygen - sugar - protein - energy A:
A: energy

Question: Q: Natural gas burns cleaner and produces less carbon dioxide than fuels of what type? Choices: - renewable fuels - solar energy - biofuels - fossil fuels A:
Answer: fossil fuels

*Question*
Q: Did darwin believe in punctuated equilibrium or gradualism? Choices: - it depended - neither - punctuated equilibrium - gradualism A:
**Answer**
gradualism

Q: Q: What branch of science deals with the effects people have on the environment? Choices: - physical science - cultural science - ecological science - environmental science A:
A: environmental science