Q: The simplest class of organic compounds is the what? Choices: - particles - Phenols - gas - hydrocarbons A:
hydrocarbons

Q: What do you call compounds that have covalent bonds? Choices: - reflectivity compounds - valence compound - ions - covalent compounds A:
covalent compounds

Q: Q: How much can the bacteria in your gut weigh? Choices: - 2.2 pounds - 2.15 pounds - 2 kilograms - 2 pounds A:
A: 2 pounds

Question: Q: How many people die from air pollution each year? Choices: - 14 million - 17 million - 5 million - 22 million A:
Answer: 22 million

*Question*
Q: At the bottom of lakes and ponds, bacteria in what zone break down dead organisms that sink there? Choices: - photic - photoreactive zone - trophic - aphotic zone A:
**Answer**
aphotic zone

*Question*
Q: What is another term for joules per second? Choices: - jiffies - jacobs - parsons - watts A:
**Answer**
watts