Climate change
Ecosystems
Human Activities
Consequences of Damage
Solutions and Actions
Key Terms
100

This gas is the primary greenhouse gas responsible for trapping heat in Earth’s atmosphere.

What is carbon dioxide (CO₂)?

100

This term describes a group of living organisms interacting with their physical environment.

What is an ecosystem?

100

Clearing forests for agriculture or urban development is known as this

What is deforestation?

100

This term describes the permanent disappearance of a species from Earth.

What is extinction?

100

Planting trees to absorb carbon dioxide is part of this type of environmental initiative.

What is reforestation?

100

This term describes the variety of all life forms on Earth.

What is biodiversity?

200

The burning of these natural resources is a major contributor to climate change

What are fossil fuels?

200

The role an organism plays in its environment, including its habitat and interactions with other species

What is a niche?

200

The introduction of harmful substances into the environment is called this

What is pollution?

200

Coral reefs are dying globally due to this process caused by warming oceans.

What is coral bleaching?

200

This renewable energy source uses the Sun's energy to generate electricity

What is solar power?

200

This layer of the atmosphere protects Earth from harmful ultraviolet radiation.

What is the ozone layer?

300

The increase in global temperatures is commonly referred to as this.

What is global warming?

300

These organisms produce their own energy through photosynthesis and form the base of most food chains.

What are producers?

300

Overfishing has led to the depletion of these, crucial for marine ecosystems and human diets.

What are fish stocks?

300

This type of storm has become more intense and frequent due to rising global temperatures.

What are hurricanes (or cyclones)?

300

This lifestyle change involves consuming fewer animal products to reduce greenhouse gas emissions.

What is adopting a plant-based diet?

300

These gases trap heat in Earth’s atmosphere, contributing to climate change

What are greenhouse gases?

400

This phenomenon occurs when polar ice melts and seawater expands, causing coastlines to shrink.

What is sea-level rise?

400

This term refers to a species that has a disproportionately large impact on its ecosystem.

What is a keystone species?

400

The mining of this mineral for energy has led to significant habitat destruction and air pollution.

What is coal?

400

The destruction of habitats leads to this, where species are forced to move or face extinction.

What is habitat loss?

400

This global campaign encourages individuals and businesses to reduce, reuse, and recycle.

What is the 3Rs (reduce, reuse, recycle)?

400

The type of agriculture that depletes soil nutrients and leads to desert-like conditions.

What is unsustainable farming?

500

This international agreement aims to limit global warming to well below 2°C above pre-industrial levels.

What is the Paris Agreement?

500

This process describes the gradual recovery of ecosystems after disturbances, such as a volcanic eruption.

What is ecological succession?

500

Excessive use of fertilizers leads to this process, which depletes oxygen in aquatic ecosystems.

What is eutrophication?

500

Melting permafrost releases this potent greenhouse gas, accelerating climate change.

What is methane (CH₄)?

500

This technology captures and stores carbon dioxide emissions before they enter the atmosphere.

What is carbon capture and storage (CCS)?

500

This is the total amount of greenhouse gases produced by an individual, organization, or product.

What is a carbon footprint?

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