instruction:
In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
question:
Sentence: Deep currents are caused by differences in density at the top and bottom of the ocean. Question: What is caused by differences in density at the top and bottom of the ocean?
answer:
deep currents

question:
Sentence: The number of particles of a substance in a given volume is known as the concentration. Question: The number of particles of a substance in a given volume is known as?
answer:
concentration

question:
Sentence: Because the fields that make up an electromagnetic wave are at right angles to each other and to the direction that the wave travels, an electromagnetic wave is considered a(n) transverse wave. Question: Because the fields that make up an electromagnetic wave are at right angles to each other and to the direction that the wave travels, an electromagnetic wave is considered what?
answer:
transverse wave