instruction:
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).
question:
Paragraph: Wave frequency can be measured by counting the number of crests or compressions that pass the point in 1 second or other time period. The higher the number is, the greater is the frequency of the wave.
 Question: If Milo increases the number of crests of his wave, what happens to the frequency of his wave? 
 Choices: A)increases 
B)decreases
answer:
increases


question:
Paragraph: Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies.
 Question: For radio transmissions, shorter wavelength waves have 
 Choices: A)higher or 
B)lower frequencies.
answer:
higher or


question:
Paragraph: Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.
 Question: Jimbo heated a pot of water on his stove. What happens to the amount of oxygen contained in the water as the temperature increases? 
 Choices: A)increases 
B)decreases
answer:

decreases