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).

Paragraph: For a given medium such as air, sound has a slower speed at lower temperatures.
 Question: If Mary is blowing an air horn underwater and she lowers the temperature of the water, what will happen to the speed of the sound waves generated by the air horn? 
 Choices: A)increase 
B)decrease
decrease

Paragraph: In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster.
 Question: John monitors the log to see the temperature of the water, and he notices that as the temperature falls, the evaporation rate is 
 Choices: A)Higher 
B)Lower.
Lower.

Paragraph: Chemical weathering increases as: Temperature increases: Chemical reactions proceed more rapidly at higher temperatures.
 Question: The temperature has been rising in a certain part of the world. The temperature change leads to _____ chemical weathering. 
 Choices: A)less 
B)more

more