Question 1

Which of the following best explains why the use of fossil fuels contributes to global warming?

Accepted Answer

Fossil fuels release $$\mathrm{CO_2$}$$, a greenhouse gas, into the atmosphere, increasing the greenhouse effect.

Question 2

A city decides to replace traditional rooftops with green roofs. Which of the following is NOT a direct benefit of this strategy?

Accepted Answer

Green roofs increase the use of non-renewable resources.

Question 3

Which process describes the transformation of productive land into desert-like conditions due to overgrazing and poor land management?

Accepted Answer

Desertification

Question 4

A community near the coast experiences frequent sinkholes and increased saltwater in their freshwater supply. What is the most likely cause?

Accepted Answer

Excessive removal of water from underground aquifers

Question 5

Which of the following best describes biological magnification?

Accepted Answer

The accumulation of non-degradable toxic substances in the tissues of organisms at higher trophic levels.

Question 6

A lake near a city becomes marshy and eventually dries up after years of receiving runoff from nearby farms. Which process is primarily responsible for this transformation?

Accepted Answer

Eutrophication

Question 7

Which of the following is a sustainable agricultural practice that helps maintain soil nutrients and biodiversity?

Accepted Answer

Crop rotation and composting

Question 8

Why is the loss of biodiversity a significant concern for human populations?

Accepted Answer

It threatens ecosystem services such as fresh water, climate regulation, and medicinal resources.

Question 9

Which of the following is an example of a non-renewable resource?

Accepted Answer

Fossil fuels

Question 10

A developing country (LDC) has a rapidly growing population. Which of the following is a likely environmental consequence?

Accepted Answer

Increased pressure on local resources and higher pollution levels

Question 11

Which of the following strategies would most directly help reduce the environmental impact of human populations?

Accepted Answer

Lowering fertility rates globally

Question 12

Which of the following best describes the relationship between human population size and environmental impact?

Accepted Answer

Environmental impact is directly proportional to population size.

Question 13

A city implements public transportation and encourages energy-efficient buildings. Which sustainability principle are they applying?

Accepted Answer

Conserving energy and reducing pollution

Question 14

Which of the following is a direct effect of deforestation?

Accepted Answer

Desertification and loss of habitat

Question 15

Which of the following best explains why recycling is important for sustainability?

Accepted Answer

It reduces the stress on natural resources by reusing materials.

Question 16

A region experiences increased runoff of storm water due to urbanization. What is a likely consequence?

Accepted Answer

Increased mixing of sewage with storm water, leading to waterborne infections

Question 17

Which of the following is a reason why monoculture farming can be harmful to the environment?

Accepted Answer

It leads to low genetic diversity, making crops more vulnerable to disease.

Question 18

Which of the following is an example of a strategy to protect ecosystems and promote sustainability?

Accepted Answer

Establishing greenbelts and protecting wetlands

Question 19

If a pollutant is released into a river and becomes more concentrated in fish than in the water, and even more concentrated in birds that eat the fish, which process is occurring?

Accepted Answer

Biological magnification

Question 20

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

Accepted Answer

$$I = N 	imes C$$

Human Population Growth, Environmental Impact, and Sustainability

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