Biology

The correct answer is: A.Population of bacteria doubling every hour.

Explanation:

Exponential growth occurs when a population grows at a rate that is proportional to its current size, meaning the larger the population becomes, the faster it grows. This leads to a characteristic J-shaped curve in a graph of population over time.

A.Population of bacteria doubling every hour: This is a clear example of exponential growth. In this case, the bacteria population is increasing by a fixed percentage (doubling) at regular intervals, which is a hallmark of exponential growth.

B.Number of cars on the road increasing steadily over time: This describes linear growth, not exponential growth. The number of cars incr...