Background extinction refers to the normal extinction rate. These are species that go extinct simply because not all life can be sustained on Earth and some species simply cannot survive. Mass extinction is a widespread event that wipes out the majority (over 50%) of living plants and animals.
D. More economically developed countries
Answer:
the answer is 40c because i just took the test
Explanation:
the answer is A because A always goes with T
Answer: yup. That, and water or air.
Explanation:
