Which of the following is an example of a density-independent factor limiting population growth?

a. competition for food
b. the presence of predators
c. a forest fire that was caused by lightning
d. an outbreak of wasting disease in elk

What was the great rift valley formed by

The distance a car travels between the time the driver decides to stop the car and the time the driver puts on brakes is called the reaction distance. how does the reaction distance change with speed? a.reaction distance decreases with with speed b.reaction distance stays the same with speed c.reaction distance increases with speed. d.there is not enough information to answer the question

Following lenins death, who took control of the soviet union