Problem: OPTIONS:
- urbanization
- immigration
- zero population growth
- global warming
Q: Q: What is already causing food and water shortages and species extinctions? A:
Answer: global warming

Problem:OPTIONS:
- plasma
- solid
- liquid
- gas

Q: What form of matter has neither a definite shape nor a definite volume? A:
****
A: gas

Q: In what unit is heat measured in? A:
OPTIONS:
- velocities
- thermals
- amperes
- joules
joules

Q: What is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond? A:
OPTIONS:
- fructose
- sulfate
- chloride
- sucrose

Answer: sucrose

Question: Q: Bromide is present in brines, which are naturally occurring solutions of what? A:
OPTIONS:
- iron
- calcium
- magnesium
- salt
Answer: salt

input: OPTIONS:
- helium
- nitrogen
- methane
- oxygen Now, answer this question: Q: Aquatic producers need nutrients and what dissolved gas, which is more abundant near the surface of water? A:
A:
output:
oxygen