Answer:
choice b
Explanation:
The reason is if you have a pronoun they say they and a nest is a it. because its a place not a animal or person.
Was an undersea forest and contained strange plants
<span>b) waged wars of conquest. This is because everything else is written in the past tense, so only choice b would work.
choice d is just a waste of words.</span>
Explanation:
1 It can be a source of livelihood
2 It can make people work harder and focus in their work instead of thinking about anything unnecessary
3 It can make people successful and wealthy in many cases as money is one of the major factor for stress
