We have environmental problems, because the wastes that we produce is more than the earth can handle at once. For example, we produce large amounts of plastic, in which the earth takes thousands of years to consume a plastic bottle, and it is hazardous to burn it away. Our environmental problems are caused by us, and we ourselves need to fix it.
hope this helps
1) I think it’s d
2) I think it’s a
3) I think a
And I have no idea for 4 and 5, I’m sorry I really tried to help
Answer:
i beileve B
Explanation:
im reallyyyy sorry if this is wrong i tried my best hope this helps :))
Having a surplus of grain means they had more time for leisure activities which would further develop their civilization.