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).

[EX Q]: Paragraph: Rougher surfaces have more friction between them than smoother surfaces.
 Question: Eric rubs together tissue paper and then sandpaper. The smoother tissue paper has _____ friction than the sandpaper. 
 Choices: A)less 
B)more
[EX A]: less

[EX Q]: Paragraph: We can say that resistance and current in an electric circuit areinversely proportional, because as the one increases, the other decreases, and vice versa.
 Question: If Mary increases the resistance of her electrical circuit, what will happen to the current in that circuit? 
 Choices: A)increase 
B)decrease
[EX A]: decrease

[EX Q]: Paragraph: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.
 Question: Would Jim's solution become more or less acidic if he increased the concentration of hydrogen atoms in it? 
 Choices: A)more acidic 
B)less acidic
[EX A]:
more acidic