Q: The waste of cows releases a lot of which type of gas? Choices: - carbon dioxide - oxygen - sulphur - methane A:
methane

Q: While some climate regions have multiple layers, arid regions are poor for development of what? Choices: - rain - plants - minerals - soil A:
soil

Q: Q: The fundamental unit of time, the second, is based on what type of clock? Choices: - quantum clock - eternal clock - gravity clock - atomic clock A:
A: atomic clock

Question: Q: What single-celled organism can be either a predator, decomposer, herbivore, or parasite in the food chain? Choices: - vertebrates - mites - Diatoms - protozoa A:
Answer: protozoa

*Question*
Q: Hazardous waste is material that is toxic, chemically active, corrosive, or what? Choices: - inactive - decomposed - organic - flammable A:
**Answer**
flammable

(Q).
Q: What does the moon not have to protect it from extreme temperatures? Choices: - oceans - metals - oxygen - atmosphere A:
(A).
atmosphere