Question 1

Where is the ozone layer found?

Accepted Answer

The ozone layer is found in the stratosphere, which is the layer of Earth's atmosphere located about 10 to 30 kilometers above the surface. It is not found in the deep ocean or on the surface of large bodies of water, nor in the rainforest canopy.

Question 2

You fly across the Atlantic Ocean and then offset the carbon emission by making a donation to a program that saves the rainforest. Your action conforms to the practice of

Accepted Answer

Offsetting carbon emissions by supporting the conservation of the rainforest is an example of sustainability, which refers to the practice of meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. Reuse, recycling, and downsizing do not directly relate to this specific action.

Question 3

In the early 1900s public health focused on

Accepted Answer

In the early 1900s, public health efforts were primarily focused on combating infectious diseases through improving sanitation, hygiene, and vaccination programs. A focus on increasing green spaces, combating climate change, and decreasing pesticide use did not become major public health concerns until much later.

Question 4

Which gas is produced when certain pollutants mix with sunlight?

Accepted Answer

Ground-level ozone is produced when certain pollutants, such as nitrogen oxides and volatile organic compounds, react with sunlight. This process is known as photochemical smog formation. Nitrogen dioxide, sulfur dioxide, and carbon monoxide can also contribute to air pollution, but they are not specifically produced by the reaction of pollutants and sunlight.

Question 5

The collection of organisms and their nonliving surroundings that functions as a unit is called

Accepted Answer

The term used to describe the collection of organisms and their nonliving surroundings functioning as a unit is an ecosystem. Options A, C, and D are not appropriate as they do not accurately describe this concept.

Question 6

The term ________ was coined from the words "smoke" and "fog."

Accepted Answer

The term "smog" was first used in the early 20th century to describe a type of air pollution that was a mixture of smoke and fog, hence the name. ETS (A) refers specifically to secondhand smoke from tobacco products, particulates (C) are tiny particles suspended in the air, and ozone (D) is a gas that can be both beneficial and harmful depending on where it's found in the atmosphere.

Question 7

When a country's number of live births and immigrations simply replaces the number of deaths and emigrations, it is said to have achieved ________ population growth.

Accepted Answer

Zero population growth occurs when the number of births and immigrants equals the number of deaths and emigrants, leading to no net change in population size.

Question 8

All of the following are examples of social reforms to help curb population growth except

Accepted Answer

Increased opportunities for people to immigrate to the United States is not a social reform to address population growth. In fact, immigration can often contribute to population growth in certain areas. The other choices, B, C, and D, all relate to expanding opportunities and resources for women to make informed decisions about their reproductive health, education, and careers, which can help limit population growth.

Question 9

The world's population as of 2011 was around

Accepted Answer

According to the United Nations, the world's population reached approximately 7 billion in 2011.

Question 10

Public health experts get involved with all of the following except

Accepted Answer

Public health experts do not typically get involved in road safety as it is usually the responsibility of transportation and law enforcement agencies. However, they may contribute to policies and programs related to road safety if it has a significant impact on public health.

Question 11

The ability to meet our current needs without compromising future generations' ability to meet their own needs is referred to as

Accepted Answer

Sustainability is defined as meeting the needs of the present without compromising the ability of future generations to meet their own needs. The other options - environmental health, ecosystem, and recycling - are important components of sustainability, but do not fully encompass the concept.

Question 12

According to a survey of college students' viewpoints on environmental health, over half felt that it was important

Accepted Answer

The answer of According to a survey of college students'...

Question 13

All of the following are consequences of overpopulation except

Accepted Answer

Overpopulation typically leads to increased carbon dioxide levels due to increased industrialization and use of fossil fuels. Therefore, decreased levels of carbon dioxide would not be a consequence of overpopulation.

Question 14

Fish can have high levels of this toxin which can cause paralysis or death.

Accepted Answer

Mercury is a neurotoxin that can accumulate in fish due to human pollution, particularly from coal-fired power plants. High levels of mercury can cause paralysis or death in humans and animals that consume contaminated fish.

Question 15

Which U.S. government agency exists to protect human health and safeguard the natural environment?

Accepted Answer

The EPA (Environmental Protection Agency) exists to protect human health and safeguard the natural environment through the development and enforcement of regulations focused on reducing pollution and protecting natural resources. The USDA (United States Department of Agriculture) is primarily focused on agriculture and forestry, while the FDA (Food and Drug Administration) is focused on ensuring the safety of food, drugs, and medical devices. The IPCC (Intergovernmental Panel on Climate Change) is an international organization focused on addressing climate change.

Question 16

The potential effects of global warming include all of these except

Accepted Answer

Global warming is expected to have many negative effects, including increased food shortages, more outbreaks of infectious diseases, and increased air pollution. However, it is not expected to result in fewer hurricanes. In fact, some research suggests that global warming may increase the frequency and intensity of hurricanes.

Question 17

Which poisonous gas inhibits the blood's ability to carry oxygen?

Accepted Answer

Carbon monoxide binds with hemoglobin in the blood, which reduces the amount of oxygen that can be carried in the bloodstream. This can lead to carbon monoxide poisoning, which can cause headaches, dizziness, vomiting, and even death.

Question 18

Which highly reactive gas is a primary component of acid rain and is linked to numerous health problems?

Accepted Answer

Sulfur dioxide is a highly reactive gas that is a primary component of acid rain and is linked to respiratory problems and other health issues.

Question 19

Which of the following environmental contaminates makes the most significant contributions to health problems?

Accepted Answer

Human-made contamination is the most significant contributor to health problems because it includes a wide range of pollutants that can have harmful effects on human health. These pollutants can include chemicals, heavy metals, and other toxins that can be released into the environment through industrial processes, agricultural practices, and other human activities.

Question 20

The phrase "good up high, bad nearby" with reference to ozone means

Accepted Answer

The phrase "good up high, bad nearby" refers to the fact that the ozone in the stratosphere is beneficial, as it protects us from harmful UV radiation, while the ozone at ground level is a harmful air pollutant and a key component of smog. So, option C is correct. Option A is incorrect because both types of ozone do not affect carbon dioxide levels. Option B and D are incorrect as they do not accurately reflect the relationship between the two types of ozone.

Quiz 16: Your Environment, Your Health