Given the fact that: Chemical weathering increases as: Temperature increases: Chemical reactions proceed more rapidly at higher temperatures. Answer the question: John was combining chemicals in his lab one day. If he were to decrease the temperature in his lab, what would happen to the rate of chemical reactions in his experiments increase or decrease?
decrease

Given the fact that: The density of the atmosphere decreases with an increase in the height above sea level (altitude). Answer the question: What would happen to the atmosphere as Jim climbed lower down a mountain it would become less dense or it would become more dense?
it would become more dense

Q: Given the fact that: The more efficient a device is, the greater the percentage of usable energy it produces. Answer the question: Theresa made a device that uses 25% of usable energy. Ryan made a device that uses 10% of usable energy. Theresa or Ryan made a device that is more efficient?
A: Theresa

Question: Given the fact that: The elastic force increases the more the material is stretched or compressed. Answer the question: When a rubber band is stretched, its elastic force increases or decreases?
Answer: increases

*Question*
Given the fact that: A stronger acid produces a greater concentration of ions than a weaker acid. Answer the question: If Jim decreases the strength of an acid he is playing with, the concentration of ions in that acid falls or rises?
**Answer**
falls

(Q).
Given the fact that: Water becomes more dense when it is colder and when it has more salt. Answer the question: Water found on Earth's hot regions is more or less dense that water found on Earth's cold regions?
(A).
less