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: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.
 Question: A human who eats an animal that is low on the food chain should take in _____ toxic metals. 
 Choices: A)more 
B)less

Answer: less


Question: Paragraph: In a series circuit, the resistance increases as more resistors are added in series.
 Question: Eric adds more resistors to the series circuit. The resistance 
 Choices: A)increases 
B)decreases

Answer: increases


Question: Paragraph: Water flowing over a steeper slope moves faster and causes more erosion.
 Question: Mona is a scientist studying erosion at a university. She is observing a river. If she starts taking erosion measurements at the mouth of the river and moves up to the head of the river, what will she find happens as the slope gets less steep? 
 Choices: A)erosion decreases 
B)erosion increases

Answer:
erosion decreases