Environmental Science Final Review

What is environmental science?

• The study of environmentalism

• The interdisciplinary study of how humans interact with their environment

• The study of ecological footprints

• A branch of biology focused on organisms and their habitats

Answer explanation

Environmental science is the interdisciplinary study of how humans interact with their environment, encompassing various fields such as biology, ecology, and social sciences to understand these complex relationships.

Tags

NGSS.MS-ESS3-4

What does the IPAT model calculate?

• Environmental degradation rates

• A population’s ecological footprint

• Environmental impact based on population, affluence, and technology

• Natural capital use

Answer explanation

The IPAT model calculates environmental impact by considering three factors: population, affluence, and technology. This helps in understanding how these elements contribute to environmental degradation.

Tags

NGSS.MS-ESS3-4

What is an ecological footprint?

• The amount of land and water needed to sustain a population’s resource use and absorb waste

• A measure of biodiversity

• Pollution caused by a specific individual

• A model for resource management

Answer explanation

An ecological footprint measures the land and water required to support a population's resource consumption and waste absorption, making it the correct choice. Other options do not accurately define this concept.

Which worldview emphasizes managing Earth for human benefit while considering resource stewardship?

• Planetary management

• Stewardship

• Earth-centered

• Anthropocentric

Answer explanation

The stewardship worldview focuses on managing Earth responsibly for human benefit while ensuring sustainable resource use. It balances human needs with environmental care, making it the correct choice.

Tags

NGSS.MS-ESS3-4

What is the tragedy of the commons?

• Overharvesting a private resource

• Depletion of shared resources by individuals acting in their self-interest

• Lack of renewable energy options

• Unsustainable population growth

Answer explanation

The tragedy of the commons refers to the depletion of shared resources when individuals prioritize their self-interest over the collective good, leading to overuse and eventual resource exhaustion.

Tags

NGSS.MS-ESS3-4

What is the role of producers in ecosystems?

• To decompose dead matter

• To cycle nitrogen

• To convert sunlight into chemical energy

• To consume other organisms

Answer explanation

Producers, such as plants, play a crucial role in ecosystems by converting sunlight into chemical energy through photosynthesis. This process forms the base of the food chain, supporting all other organisms.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which atmospheric layer absorbs harmful UV rays?

• Troposphere

• Stratosphere

• Ozone layer

• Thermosphere

Answer explanation

The ozone layer, located within the stratosphere, absorbs the majority of the sun's harmful ultraviolet (UV) radiation, protecting living organisms on Earth from its damaging effects.

Which resource is part of natural capital?

• Manufactured goods

• Renewable resources

• Technosphere components

• Fossil fuels

Answer explanation

Renewable resources, such as forests and water, are part of natural capital as they are naturally occurring assets that provide ecological services. In contrast, manufactured goods and technosphere components are human-made.

Tags

NGSS.MS-LS2-5

What is environmental degradation?

• The study of ecosystems

• Managing ecosystems for human use

• A form of pollution

• The depletion of renewable resources faster than they can be replenished

Answer explanation

Environmental degradation refers to the depletion of renewable resources faster than they can be replenished, leading to a decline in the quality and health of ecosystems.

Tags

NGSS.MS-LS2-5

Which of the following cycles includes nitrogen fixation?

• Nitrogen cycle

• Phosphorus cycle

• Carbon cycle

• Water cycle

Answer explanation

The nitrogen cycle is the process that includes nitrogen fixation, where atmospheric nitrogen is converted into a usable form for plants by bacteria. The other cycles listed do not involve this process.