Evaluate Which two threats to marine
ecosystems do you think are the most serious?
Why?

Oil spills and overfishing

Explanation:

Oil spills are the most dangerous as they harm the entire environment around them

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations. click to let others know, how is it

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.