Human Activities on Land
Human Activities in Water
Human Activities with Organisms
Human Activities in Air
Solutions & Sustainability
100

What is the process of clearing trees for agriculture or urban expansion?

Deforestation

100

What human activity leads to ocean acidification?

Burning fossil fuels, increasing CO2 in the atmosphere

100

What is the term for the rapid growth of the human population?

Exponential growth

100

What pollutant is the primary cause of ozone depletion?

Chlorofluorocarbons 

100

What is one way to reduce land pollution?

Recycling and proper waste disposal


200

What is the term for cities spreading into rural areas?

Urbanization

200

What is the leading source of water pollution?

Agricultural runoff and industrial waste


200

What agricultural movement introduced high-yield crops and synthetic fertilizers?

The Green Revolution

200

What is the term for thick air pollution in urban areas?


Smog

200

How can we make fishing more sustainable?

Using quotas, marine reserves, and responsible fishing techniques

300

How does mining negatively impact the environment?

Habitat destruction, water pollution, and soil erosion

300

What process removes salt from seawater to make it drinkable?

Desalination

300

What is one major concern about GMOs?

Potential loss of biodiversity and unknown health effects


300

What is the main source of air pollution?

Burning fossil fuels (coal, oil, gas)

300

What is one alternative energy source that reduces air pollution?

Solar, wind, or hydroelectric power


400

What is a major cause of land pollution?

Improper disposal of industrial and household waste

400

What is one negative effect of overfishing?

Collapse of fish populations and disruption of marine ecosystems

400

Why is monoculture farming harmful?

It depletes soil nutrients and increases vulnerability to pests

400

What international treaty aimed to phase out ozone-depleting substances?

The Montreal Protocol

400

What is one method to conserve freshwater resources?


Using low-flow appliances, rainwater collection, or efficient irrigation