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: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.
 Question: When we raise the temperature of water it becomes 
 Choices: A)less dense 
B)more dense
[EX A]: less dense

[EX Q]: Paragraph: The smaller a population is, the more allele frequencies may drift.
 Question: If Milo is part of a smaller population then Jerry is, which person's population will experience greater drifting of allele frequencies? 
 Choices: A)Milo 
B)Jerry
[EX A]: Milo

[EX Q]: Paragraph: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.
 Question: The population in Milo's city has been increasing recently. What will happen to the city's level of water scarcity? 
 Choices: A)decrease 
B)increase
[EX A]:
increase