Which lines best contributes to the suspense built in the passage? a. the secular cooling that must someday overtake our planet has already gone far indeed with our neighbour. b. it has air and water and all that is necessary for the support of animated existence. c. its physical condition is still largely a mystery, but we know now that even in its equatorial region the midday temperature barely approaches that of our coldest winter. d. the immediate pressure of necessity has brightened their intellects, enlarged their powers, and hardened their hearts.

The correct answer is actually D

yes they most likly are and have planed t try to bring human life and supplies there also(due to global warming and other harmful resorces)

to eliminate ambiguous remote or broad reference it is necessary to focus on anaphoric reference. by definition "anaphoric reference means that a word in a text refers back to other ideas in the text for its meaning." the references should be clear and leave no room for ambiguity.

in the first case the pronoun it probably refers to the car but it has not been mentioned before so we should replace it for the car. in doing so the statement becomes clear.

in sentence number   two   the pronoun he refers to charles dickens the author. yet, the first half of the sentence is about the book a tale of two cities. to repair this it would be better to rephrase the first half : after i read   a tale of two cities by dickens, he so as to remove the remote reference.