read this sentence from the evolution of useful things. making waterproof sandpaper would allow wet sanding…

read this sentence from the evolution of useful things. making waterproof sandpaper would allow wet sanding, which in turn would cut down on dust, and thus be a great improvement. the underlined phrases indicate passing of time. a directional change of position. a cause - and - effect relationship. sequence of events.

read this sentence from the evolution of useful things. making waterproof sandpaper would allow wet sanding, which in turn would cut down on dust, and thus be a great improvement. the underlined phrases indicate passing of time. a directional change of position. a cause - and - effect relationship. sequence of events.

Answer

Brief Explanations:

The phrase "which in turn" and "and thus" show that making waterproof sandpaper (cause) leads to wet sanding which reduces dust (effect), indicating a cause - and - effect relationship.

Answer:

C. a cause - and - effect relationship