Why do you think it is so important for scientists to be able to gather evidence from past to research the effects of climate change on marine ecosystems ?

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

oak trees? ? what was listed

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

what's the question ?