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.

[EX Q]: Question: Lead has a _____ melting point than steel because it has more branching. 
 Answer: lower
[EX A]: The more branching there is in isomers, the lower the boiling and melting points are.

[EX Q]: Question: An decrease in birth rates indicates a/an _____ in the food supply. 
 Answer: decrease
[EX A]: Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

[EX Q]: Question: Mike wants his circuits to be able to have a higher resistance, so that the current decreases. In order to do this, he will consider his resistors and 
 Answer: increase them
[EX A]:
We also saw that adding resistors to a series circuit increases the total resistance of the circuit, causing the current to decrease.