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.
It stayed the same.
1 answer
It increased.
Responses
It increased.
It increased.
It decreased.
It decreased.
It stayed the same.
It stayed the same.
1 answer
1 answer
1 answer
1 answer
1 answer