Question

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 1

C. a cause-and-effect relationship.

Step-by-step explanation:

This would be a cause-and-effect relationship because the effect would be everyone buying the sandpaper and the cause would be making waterproof sandpaper

Hope this helps!

Answer 2

C) a cause and effect relationship

Step-by-step explanation:

A cause and effect relationship is when one event cause another one to happen