A beaver population of 15,000 experiences 1,000 births and 3,000 deaths in a year. Apply the growth rate equation to determine the beaver population's growth rate for the year.

The beaver population's growth rate for the current year is -13.33%.

Data and Calculations:

Past population of beaver = 15,000

Births this year = 1,000

Deaths in the year = 3,000

Decrease = 2,000 (1,000 - 3,000)

Present population of beaver = 13,000 (15,000 + 1,000 - 3,000)

Growth rate equation = (Present Population/Past Population)^1/n - 1

= (Present Population - Past Population)/Past Population x 100

= (13,000 - 15,000)/15,000 x 100

= -2,000/15,000 x 100

= -13.33%

Thus, the beaver population's growth rate for the year is negative, showing a decrease of 13.33% or 2,000 persons.

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developed countries have tended to improve the environment, while developing countries have tended to damage it.