What happened to the average amount of Dead Zone from 1990 to 2015?(1 point)
Responses
It increased.
It increased.
It decreased.
It decreased.
It stayed the same.
1 answer
It increased.
Responses
It increased.
It increased.
It decreased.
It decreased.
It stayed the same.
1 answer
1 answer
1 answer
1 answer
1 answer