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: To reduce friction, oil is added to the engine.
 Question: Jeff should add _____ to his engine to decrease the friction in its processes. 
 Choices: A)oil 
B)gas

Answer: gas


Question: Paragraph: When particles move more quickly, temperature is higher and an object feels warmer.
 Question: Rita sees a particle and makes it move very slowly. The temperature of the particle 
 Choices: A)increases 
B)decreases

Answer: decreases


Question: Paragraph: The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away.
 Question: When something is gravitationally close to something else it will go 
 Choices: A)slower 
B)faster

Answer:
faster