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).

Paragraph: More advanced farming practices allowed a single farmer to grow food for many more people.
 Question: A farmer, using the newest farming practices, can expect to grow _____ crops. 
 Choices: A)more 
B)less
more

Paragraph: Greater use of oil and other fossil fuels causes more pollution.
 Question: When we have less cars on the road the pollution levels 
 Choices: A)decrease 
B)increase
decrease

Paragraph: In electromagnetic waves with higher frequencies, photons have more energy.
 Question: If Jim increases the frequency of the radio waves on his shortwave radio, will the radio use 
 Choices: A)less energy? 
B)more or

more or