QUESTION 1 The United States has the lowest replacement-level fertility (RLF) of

Question

QUESTION 1 The United States has the lowest replacement-level fertility (RLF) of the developed countries. True or False? O True O False QUESTION 2 What factors determine Earth's carrying capacity for humans? Arial V 3 (12pt) Path: p Words:0 QUESTION 3 d fires are examples ofwhich can dramatically and unpredictably reduce populations. O environmental resistance O logistic growth factors O density-dependent factors O demographic factors O biotic factors QUESTION 4 ulation stops growing because it has reached the maximum number that the environment can support, we say that When a pop the population has reached what? Arial 3 (12pt)

Explanation / Answer

QUESTION 1. True

The replacement fertility rate of 2.1 is regarded as the optimal level for stability. But in 2017, the total fertility rate, or number of births each woman is expected to have in her childbearing years, dropped to 1.76 in the US.

QUESTION 2.

The factors that determine the earth's carrying capacity for humans are,

Availability of fresh water,

Food,10 billion people is the uppermost population limit where food is concerned. Because it's extremely unlikely that everyone will agree to stop eating meat.

Fertility rate, the fertility rate is falling to the "replacement level" which is 2.1 children per woman, the rate at which children replace their parents. If the global fertility rate does indeed reach replacement level by the end of the century, then the human population will stabilize between 9 billion and 10 billion.

QUESTION 3.

Floods and fires are examples of environmental resistance which can dramatically and unpredictably reduce populations. They are the factors that limit the growth of a population.

QUESTION 4.

When a population stops growing because it has reached a maximum number that the environment can support, we say that the population has reached the carrying capacity. Carrying capacity is defined as the maximum population size that an environment can support beyond which growth of a population stops or declines.

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