We can see that the research question that is most effective is: D. What are fossil fuels?
<h3>What is research question?</h3>
Research question is actually known to be a question which is asked by a researcher which forms the basis for his evaluation, examination, and experimentation. Every good research question must be clear and focused.
We see that the selected answer is actually clear and focused and covers other aspect of the research.
Learn more about research on brainly.com/question/6947486
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Answer:
-Rain forests cover 6% of the world
-sloths, tapirs, jaguars, tigers, howler monkeys, spider monkeys and orangutans live is rain forests
-The Amazon rain forest is 10 Million years old
There's your random information.
The pond it complements the pond
