Question

remotely operated vehicles. 2 nw rota-1 is far below the ocean’s photic zone where sunlight drives photosynthesis. 3 nevertheless, bacteria supporting a unique food web have adapted to this perpetually dark environment. the bacteria have evolved to use hydrogen sulfide instead of sunlight for the energy that drives their metabolic processes, and hydrothermal venting is the source of the chemical soup necessary to support 4 him or her. seawater seeping into fissures in the ocean floor is heated by underlying magma, and the heat drives chemical reactions that remove oxygen, sulfates, 5 and remove other chemicals from the water. once the superheated water (up to 750°f) rises through vents in the ocean floor, additional reactions cause minerals and compounds to precipitate onto the seafloor, where bacteria feed on them. 2 to make the paragraph most logical, sentence 6 should be placed a) where it is now. b) after sentence 1. c) after sentence 2. d) after sentence 3. 3 a) no change b) afterward, c) furthermore, d) similarly, 4 a) no change b) one. c) them. d) it. 5 a) no change b) it also removes c) also removing d) and

Explanation:

Question 2

To determine the best placement for sentence 6 (not shown, but contextually, we assume it relates to the flow of the paragraph), we analyze the logical sequence. Sentence 1 introduces NW Rota - 1, sentence 2 talks about bacteria adapting, sentence 3 about their energy source and hydrothermal venting. The logical flow would be to place the sentence after sentence 2 to continue the explanation of the environment and the bacteria's adaptation before delving into the hydrothermal venting details. So the correct placement is after sentence 2.

The original word "nevertheless" is used to show contrast. But the context here is that even though it's dark (no photosynthesis), bacteria have adapted. Wait, no, let's re - evaluate. Wait, the first part says it's below the photic zone (no sunlight for photosynthesis), and then bacteria support a food web. The correct conjunction should show contrast? Wait, no, the options: "nevertheless" (original) is a contrast. But let's check the options. Wait, the question is about the word in the box (probably the transition word). Wait, the original is "nevertheless", but let's see the context. The first sentence: NW Rota - 1 is far below the photic zone (no sunlight for photosynthesis). Then "nevertheless, bacteria...". But maybe the correct answer is A? Wait, no, maybe I misread. Wait, the options are A) NO CHANGE, B) afterward, C) furthermore, D) similarly. The context: the first part is about no sunlight, then bacteria adapting. "Nevertheless" shows contrast (even though no sunlight, bacteria adapted), which is correct. So the answer is A.

The pronoun should refer to "bacteria" (plural) or the "chemical soup"? Wait, "to support" - the antecedent. The bacteria are supported? No, the chemical soup is to support the bacteria. Wait, the original is "him or her", which is wrong. The correct pronoun should be "them" (referring to bacteria, plural) or "it" (referring to the chemical soup, singular). Wait, the chemical soup is the source to support the bacteria (plural). So "them" (option C) or "it"? Wait, "the chemical soup necessary to support" - the bacteria are the ones being supported, so plural. So "them" (option C) is correct? Wait, no, let's check the options. Option C is "them". Wait, the original is "him or her" (wrong, as bacteria are not human). So we need a plural pronoun. "Them" refers to bacteria (plural), so option C.

Answer:

C) after sentence 2.

Question 3