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 Earth's plate tectonics slowed down, Earth's convection would 
 Answer: decrease
[A]: Convection on early Earth was faster and so plate tectonics was faster.


[Q]: Question: Noah has noticed that the galaxies are contracting. This will make the galaxies 
 Answer: nearer
[A]: As the Universe expands, galaxies move further and further apart.


[Q]: Question: Eric has dark skin and Rita has light skin. Who produces less melanin? 
 Answer: Rita
[A]:
However, the melanocytes of people with darker skin produce more melanin.