Answer:
Work is done when an object moves in the same direction as the force is applied and also when force remains constant.
Answer:
The relationship between ideas would lack the appropriate emphasis and logical flow. (The second option)
Explanation:
Transitions signal relationships between ideas. Basically, transitions provide the reader with directions for how to piece together the author's ideas into a logically coherent argument.
So transitions help readers understand the logic of how the writer's ideas fit together, and therefore, the answer is the second option.
The answer is not A, because it is not clear enough. Who's we?
The answer is not B, the sentence is not clear about the building they are visiting.
The answer is not C, it's not clear about what building they are talking about.
So your answer is D.