You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Q: Paragraph: This is also called diffusion, and the process is much faster in gases than in liquids, because the particles in gases are further apart.
 Question: Diffusion occurs slower in 
 Choices: A)water 
B)oxygen.

A: water
****
Q: Paragraph: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.
 Question: If Jim eats animals that are lower on the food chain, the amount of toxic metals that enter his body are 
 Choices: A)greater 
B)smaller

A: smaller
****
Q: Paragraph: An increase in predators, the emergence of a new disease, or the loss of habitat are just three possible problems that will decrease a population.
 Question: If there are very few wolves the deer population will 
 Choices: A)increase 
B)decrease

A:
increase
****