instruction:
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.
question:
Question: Lead has a _____ melting point than steel because it has more branching. 
 Answer: lower
answer:
The more branching there is in isomers, the lower the boiling and melting points are.


question:
Question: Mona lives on a planet with an unstable population. If the number of people on her planet were to decrease, what would happen to global warming on her planet? 
 Answer: decrease
answer:
For example, more people on the Earth means more people contributing to global warming and pollution.


question:
Question: When in the stratosphere, Dean can tell that the temperature is getting warmer as the altitude he is at 
 Answer: increases
answer:

The stratosphere contains the ozone layer, the temperatures increase as altitude increases.