Q: What are angiosperms most important function to humans? A:
OPTIONS:
- oxygen production
- gasoline
- water filtration
- food

Answer: food

Question: Q: To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy? A:
OPTIONS:
- ion exchange
- evaporation
- entropy
- energy
Answer: energy

input with options: Q: The point in front of a mirror where the reflected rays intersect is known as what? A:
OPTIONS:
- reflective point
- boundary point
- periodic point
- focal point
output: focal point

Q: Q: What is the only known planet with large amounts of water? A:

OPTIONS:
- saturn
- jupiter
- mars
- earth

A: earth

input: OPTIONS:
- humans
- water
- air
- sunlight Now, answer this question: Q: Secondary pollutants form from chemical reactions that occur when pollution is exposed to what? A:
A:
output: sunlight

Question: Q: The negative logarithm of the hydroxide-ion concentration of a solution is called? A:
OPTIONS:
- the hil
- the hop
- the piel
- the poh
Answer:
the poh