The photo I attached! U have to put the verbs into Present Perfect or Past Simple

Click to read the passage from "lifeboat ethics," by garrett hardin. then answer the question. what is the author's purpose for including the following example in his argument against rich nations poor nations? a. he wants to explain why more nations need to invest in "miracle" crops. b. he wants to disprove the idea that poor nations will eventually be able to support themselves. c. he wants to prove that the green revolution is the best use of people's money. d. he wants to show a solution to poverty that he believes can actually work.

How do cheetah kitten silver manes them to survive? quote evidence from the teaxt to support your response and explain your answer completely

Hur ! asap what is the structure of the following sentence? although i have already visited africa, i would certainly like to return. a) compound b) compound-complex c) complex d) simple