Singular- "earth's" is singular because its showing ownership
plural- "features" is plural because its saying that there is more than one feature of the earth
Answer:
I don't know why I can't send it so here's a screenshot of my work:
Explanation:
:3
Answer:
The purpose of the bobbin is to hold the thread that is held below the needle. The thread from the bobbin goes up through the plate and connects with the top thread to create a sturdy stitch when the machine is in use.