In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

[Q]: Question: If Mona's country normally emits not a lot of greenhouse gas, but one day decides to raise the amount they emit, what will happen to the global temperature? 
 Answer: increase
[A]: A decrease in greenhouse gas levels decreases global temperature and an increase raises global temperature.


[Q]: Question: If Mona is comparing an orange and an apple and she determines that the apple is more massive then the orange, which object has more gravity? 
 Answer: apple
[A]: Objects with greater mass have a stronger force of gravity between them.


[Q]: Question: As the plane dropped altitude, the passengers felt _____. 
 Answer: warmer
[A]:
In the troposphere, temperatures decrease as altitude increases.