Answer:
can be caused by a habitat destruction
happens when a species or population dies out
Answer:
D. More humus and decreased weathering
Explanation:
Answer:
California is a biodiversity hot spot because of its unique geography, climate, geologic history and size. California’s network of terrestrial protected lands covers 46% of the state.
Explanation:
If later is was 100 million years ago, later b would be 200 million years ago (because it is 100millions years prior to a). And therefore layer c must b 300 million years ago.