Problem:OPTIONS:
- oxygen
- hydrogen
- acid rain
- carbon dioxide

Q: What substance do the leaves of plants take in from the environment? A:
****
A: carbon dioxide

Q: Deletions remove one or more what from the dna? A:
OPTIONS:
- codons
- exons
- genes
- nucleotides
nucleotides

Q: What is fluid friction with air called? A:
OPTIONS:
- buoyancy
- wind resistance
- gravity
- air resistance

Answer: air resistance

Question: Q: The process of photosynthesis ultimately gets powered by what kind of energy? A:
OPTIONS:
- biofuel
- electricity
- nonrenewable energy
- light
Answer: light

input with options: Q: Convection generally involves the transfer of what type of energy? A:
OPTIONS:
- sunlight
- radioactive
- magnetic
- thermal
output: thermal

Problem: OPTIONS:
- fats
- hormones
- salts
- acids
Q: Q: Antacids are bases that neutralize what in the digestive tract? A:
Answer:
acids