Answer:
c)ranges in age, the oldest ocean crust is in the Atlantic and the youngest is in the Arctic
Explanation:
Oceanic crust slowly moves away from mid-ocean ridges and sites of seafloor spreading. As it moves, it becomes cooler, more dense, and more thick. Eventually, older oceanic crust encounters a tectonic boundary with continental crust
Answer:
Zero
Explanation:
The past tense <u>HAD</u> means that they are no more, which means that they are not alive. So ZERO
Commercial Farming technology degrades natural biodiversity