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: The bigger the waves are and the more sediment they carry, the more erosion they cause.
 Question: Karly is studying two rivers and how they are affecting the rock around them. If the 2nd river she looks at is twice as big as the first river she is studying, then Karly would expect to see _____ erosion caused by the 2nd river. 
 Choices: A)more 
B)less
[A]: more


[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: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.
 Question: A person with a low body temperature will have _____ of the blood vessels in the skin. 
 Choices: A)narrowing 
B)widening
[A]:
widening