human impact
How does agriculture affect the environment
Deforestation, soil degradation, water overuse, pesticide pollution
Tropical (Amazon Rainforest, Central Africe, Southeast Asia)
Why is the ozone layer important?
it absorbs most of the harmful UV radiation from the Sun
3 main causes of air pollution
vehicle emissions, industrial factories, burning fossil fuels, wildfires, household smoke
What is eutrophication?
When excess nutrients (fertilisers) cause algae growth, reducing oxygen in water and harming marine life
What is biodiversity?
What is deforestation?
Large-scale removal of forests and trees, often to convert land for agricultural or urban development
What is ozone layer depletion?
thinning of the ozone layer due to chemicals, which allow harmful UV radiation to reach Earth
What is smog?
mixture of fog and smoke, usually in large cities with heavy traffic and industry
How does water pollution affect human health?
can cause cholera, diarrhea, infections
What are the main ways humans harm the environment?
Pollution, deforestation, burning fossil fuels, overfishing, waste production
What is reforestation?
Process of planting trees in areas, where forests have been cut down to restore ecosystems.
Name 2 greenhouse gases
Carbon dioxide, methane, nitrous oxide, water vapour
Which areas are most affected by air pollution?
Urban areas with heavy traffic, industrial zones
How does overfishing affect oceans?
reducing fish population, disrupts food chains, can lead to the collapse of marine ecosystems
What is urbanization?
Growth of cities
Why is deforestation harmful to enviroment?
Destroying habitats, reducing biodiversity, increasing carbon dioxide levels, contributing to climate change
What causes atmospheric damage? 3 examples
burning fossil fuels, industrial emissions, vehicle exhaust, deforestation, chemical releases
what are common air pollutants?
carbon monoxide, sulfur dioxide, nitrogen oxides, ground-level ozone
What is an oil spill?
release of oil into the ocean or sea
What is waste management?
Controlled collection, recycling and disposal of waste
What animals are most affected by deforestation?
Orangutans, tigers, sloths, jaguars, birds
What is atmospheric damage
harm caused to the Earth's atmosphere by air pollution and human activities
What is air pollution?
Presence of harmful substances in the air, gases, smoke, dust, chemicals,...
What causes water pollution?
chemicals, sewage, plastic waste, oil spills