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: Sarah ate a piece of shark meat for dinner, Sarah's levels of toxic metals have 
 Answer: increased or
[EX A]: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.

[EX Q]: Question: Karly is studying two rivers and how they are affecting the rock around them. If the 2nd river she looks at is twice as big as the first river she is studying, then Karly would expect to see _____ erosion caused by the 2nd river. 
 Answer: more
[EX A]: The bigger the waves are and the more sediment they carry, the more erosion they cause.

[EX Q]: Question: When two magnets get closer to each other they are attracted 
 Answer: faster
[EX A]:
When particles of matter are closer together, they can more quickly pass the energy of vibrations to nearby particles.