Question 1

Which of the following best explains how human activities contribute to the acceleration of the eutrophication process in aquatic ecosystems?

Accepted Answer

By releasing organic and inorganic nutrients, such as phosphates from detergents and fertilizers, into waterways, which increases bacterial growth and decreases available oxygen.

Question 2

A city decides to expand its urban area into nearby forests and agricultural land. Which of the following is a likely environmental consequence of this urban sprawl?

Accepted Answer

Loss of habitat for native species, leading to reduced biodiversity.

Question 3

Which of the following is a non-renewable resource, and why is its use considered unsustainable in the long term?

Accepted Answer

Fossil fuels; because once depleted, they cannot be replaced within a human timescale.

Question 4

Which of the following best describes biological magnification and its impact on ecosystems?

Accepted Answer

The accumulation of non-degradable toxic substances, such as PCBs and methylmercury, in the tissues of organisms at higher trophic levels.

Question 5

A region experiences frequent sinkhole formation and soil compaction after years of heavy groundwater extraction. Which resource is being overused, and what is the likely consequence for local water quality?

Accepted Answer

Aquifers; contamination by saltwater intrusion, making water unsuitable for many uses.

Question 6

Which of the following strategies would most effectively reduce the environmental impact of modern agriculture?

Accepted Answer

Using crop rotations and composting to maintain soil nutrients and reduce fertilizer use.

Question 7

If a country with a high population density and rapid industrialization does not implement pollution controls, which of the following is the most likely outcome?

Accepted Answer

Increase in local resource depletion and environmental degradation.

Question 8

Which of the following equations best represents the relationship between human population size ($$P$$), per capita resource consumption ($$C$$), and total environmental impact ($$I$$)?

Accepted Answer

$$I = P 	imes C$$

Question 9

A community wants to reduce its reliance on non-renewable resources and lower its carbon footprint. Which combination of actions would best achieve this goal?

Accepted Answer

Adopt energy-efficient transportation, use solar heating, and support green roofs.

Question 10

Which of the following is a direct value of biodiversity to humans?

Accepted Answer

Provision of medicinal resources derived from various species.

Question 11

A developing country is experiencing rapid deforestation and desertification. Which sustainable strategy would most likely help reverse these trends?

Accepted Answer

Planting indigenous species and supporting greenbelts to restore natural habitats.

Question 12

Which of the following best describes the concept of a sustainable society?

Accepted Answer

A society that provides the same goods and services for future generations as it does now, without depleting resources.

Question 13

Which of the following is a likely consequence of the loss of wetlands due to urban development?

Accepted Answer

Decreased ability to remove pollutants from water, leading to poorer water quality.

Question 14

A region with high rates of overfishing and use of large nets is likely to experience which of the following outcomes?

Accepted Answer

Decline in both target and non-target species, leading to reduced biodiversity.

Question 15

Which of the following actions would most effectively address the problem of plastic pollution in the oceans?

Accepted Answer

Maximizing recycling and reducing single-use plastics to prevent accumulation in ocean gyres.

Question 16

Which of the following best explains why lowering fertility rates is considered a sustainable development strategy?

Accepted Answer

It reduces resource consumption, pollution, and environmental degradation over time.

Question 17

A city implements green roofs and plants indigenous species throughout urban areas. Which of the following is a likely benefit of these actions?

Accepted Answer

Restoration of the natural water cycle and absorption of atmospheric pollutants.

Question 18

Which of the following is an example of how humans can directly reduce their environmental impact at home?

Accepted Answer

Practicing the three Rs: Reduce, Reuse, and Recycle.

Question 19

Which of the following is a plausible consequence if the current rate of species extinction continues as described in the study materials?

Accepted Answer

Loss of ecosystem services such as waste disposal, climate regulation, and fresh water provision.

Question 20

A mining company improperly disposes of heavy metals, which then enter the local water supply. What is a likely biological effect on humans and wildlife?

Accepted Answer

Disruption of enzyme activity in the body, leading to health problems.

Human Population Growth, Environmental Impact, and Sustainability

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