In which time frames can short-term environmental changes occur? check all that apply.
in days
in minutes
over hundreds of years
over thousands of years
over billions of years

in days

in minutes

over hundreds of years

Explanation:

The short term environmental changes are those changes which are caused by the catastrophic events. These changes remain for a short period of duration as they are temporary and the environment attains stability after these changes. These includes drought, flooding, volcanic eruption, pollution, blizzards, impact of asteroid or comet on earth and smog.  

The short term environmental changes can be seen in days, in minutes and over hundreds of years but as the environment receiver the effect of these changes also diminishes in the environment.

when it is at an intermediate population density

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.