I just took a test in school today. What question was I asked?

Question I was asked: The cheetah population around the world has decreased because of poaching and loss of habitat. The surviving population is found to have similar alleles. Which factor is endangering the species' survival the most?

I just took a test in school today. What question was I asked?

Question I was asked: Which of these events have the most influence on regional climate?

I just took a test in school today. What question was I asked?

Question I was asked:
A student wants to find the most accurate account of a scientific discovery that took place within the past three months. In which of these sources should the student look?