Question

1. Total fertility rates are typically _______ in developing countries than in developed countries, and life expectancy is on average ______ in developing countries than in developed countries. Group of answer choices

a. lower, lower

b. higher, higher

c. higher, lower

d. lower, higher

2. The total human population has grown _______ the last 100 years

Group of answer choices

a. at a steady rate

b. above earth’s carrying capacity

c. exponentially

d. logistically

e. slowly

3. Intact freshwater wetlands are ecologically beneficial because they

Group of answer choices

a. provide habitat for many marine (ocean) organisms

b. provide hydroelectric energy

c. retain storm water

d. emit methane, an important greenhouse gas

e. promote flooding in ecosystems with low annual precipitation

4. During stage 2 of the demographic transition model

Group of answer choices

a. death and birth rates are increasing

b. death rates and birth rates remain high

c. birth rates decline rapidly

d. death rates decline, while birth rates remain high

e. the population is typically decreasing in size

5. The population in a country with a total fertility rate of 4, a low death rate and a immigration rate that equals the emigration rate is

Group of answer choices

a. unpredictable

b. stable

c. decreasing

d. increasing

6. Many plants in the __________ biome have thick epidermal layers on their leaves to prevent water loss

Group of answer choices

a. tropical rain forest

b. grassland

c. deciduous forest

d. desert

e. wetland

Answer 1

1. The answer is c. higher, lower.

The developed countries have better education, health infrastructure, per capita income so their fertility remains lower than the developing countries and their life expectancy is higher than in developing countries because the mentioned variables affect the fertility in a negative way and help people to live longer by increasing the health infrastructure and nutrition intake.

2. The answer is c. exponentially.

In the last 100 years, ou total population in the world has increased by over 6 billion which if we plot in the graph shos the exponential growth pattern.

3. The answer is- c.retain stormwater.

The wetlands can hold stormwater which acts as the source of water for the human and other organisms in the dry seasons. So that it is beneficial for ecology.

4. The answer is- d. death rates decline, while birth rates remain high

In the second stage of demographic transition, a country develops its health structure better than the 1st stage mainly maternal nutrition and infant health gets special focus which in turn increases the population.

5. The answer is - d.increasing.

The fertility rate is four and the mortality rate is low. The emigration and immigration rate is the same so there will be no change due to the migration. So, in this case, the population will increase.

6. The answer is d. desert biome.

In the desert area there is always a shortage of water. So the plants in the desert biome have evolved in such a way that they have a thick layer of wax-like material over their leaves to store more water in their body.