Question

read the passage. then answer the question. earth has an outer layer of rocks, or plates. these plates float on molten rock, which is in constant motion. first, the warmest material rises. then, it cools and sinks. finally, it warms and rises again. its because of this motion that the plates move in different ways. they slide toward each other, away from each other, or across each other. however, all three movements are similar in that they can transform the landscape. mountains, volcanoes, and ocean trenches are formed from moving plates. which signal word(s) tell you the structure of paragraph 2? its because of however are similar from moving

Explanation:

The signal word "However" is used to show a contrast or change in the structure of the paragraph. It indicates that after discussing the different ways the plates move (slide toward, away, or across each other), there is a point about their similarity (all can transform the landscape). The other options: "It's because of" is a cause - effect signal but not relevant to the paragraph structure here. "Are similar" is a description of the content (the similarity of the movements) rather than a signal word for structure. "From moving" is just part of a description of how landforms are formed and not a structure - indicating signal word.

Answer:

However