Zoos also provide great research facilities sentence could be added to the passage as a specific supporting detail.
A) Zoos also provide great research facilities.
<u>Explanation:</u>
Other than the instructive and entertaining purposes, the zoos are currently turning out to be significant habitats for research and places for creating conservation strategies for jeopardized creatures. Zoos can instruct the general population and illuminate about significant biodiversity issues.
An investigation distributed in the diary PLOS ONE (which is committed to unique research from all controls inside science) found that lone 18 percent of land creatures in zoo assortments are undermined or imperiled. The entirety of the other sentences are not pertinent to the significance and normal for advanced zoos.
Your answer is C. I can't really give much of a explanation for this one sorry. But I do hope this helps you.
Have* this is because has* is past tense and have is more appropriate since there are multiple things you are referring too (Mercury, Venus, Earth and Mars). To be honest, these planets have a molten core.
I think it would be worse