What does sustainability mean?
Using resources in a way that meets present needs without harming future generations.
Which gas is the main cause of global warming?
Carbon dioxide (CO₂).
Name one renewable energy source.
Solar, wind, hydro, geothermal.
What does WWF stand for?
World Wide Fund for Nature.
Recycling always saves energy.
True.
What is biodiversity?
The variety of life (plants, animals, ecosystems) on Earth.
What is the main cause of deforestation?
Logging, agriculture, and urban expansion.
What does recycling mean?
Processing used materials into new products.
Which organization is known for its “Greenpeace” campaigns?
Greenpeace.
Plastic takes about 100 years to decompose.
False (it can take 400–500 years or more).
Define renewable energy.
Energy from sources that are naturally replenished (sun, wind, water).
What does “acid rain” result from?
Sulfur dioxide and nitrogen oxides released into the atmosphere.
Give one example of reducing waste in daily life.
Using reusable bags, bottles, containers.
Which UN body focuses on the environment?
UNEP (United Nations Environment Programme).
The ozone layer protects us from harmful UV rays.
True.
What are carbon emissions?
Carbon dioxide released into the atmosphere, mostly from burning fossil fuels.
Which natural resource is most threatened by overuse in Central Asia?
Fresh water.
What is reforestation?
Planting trees to restore lost forests.
Which organization won the Nobel Peace Prize in 2004 for environmental activism?
Wangari Maathai / Green Belt Movement.
Wind energy is a non-renewable resource.
False.
What is meant by ecosystem?
A community of living organisms interacting with their environment.
What is the greenhouse effect?
The trapping of heat in the Earth’s atmosphere by greenhouse gases.
Name one international agreement on climate change.
The Paris Agreement.
Which global event is held annually on April 22?
Earth Day.
Climate change only affects polar regions.
False.