The student set up the polometer under Ihree diarent
conditions
A no wind at 15 °C
B no wind at 25 °C
C wind at 25
°C
For each investigation the
student measured how far the
air
bubble moved along the scale
in 2 minutes.
Name the two independent
variables the student
investigated.
Name two variables that

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

Lacking something of the ozone layer