1) What causes serious air pollution in big cities ? a) Too many factories b) Too many cars and motorbikes c) Lack of trees d) Strong winds 2) What happens when factories throw waste into rivers ? a) The rivers become cleaner b) The water becomes safe to drink c) The rivers become polluted and smell bad d) Fish population increases 3) What is one major environmental impact of overpopulation and rapid urbanization? a) Cleaner air in big cities b) More green spaces in urban areas c) Increased pollution and traffic congestion d) Reduced use of natural resources 4) Why does deforestation mainly happen today? a) To expand farmland and build houses b) To protect wildlife habitats c) To increase the number of national parks d) To reduce soil erosion 5) Which type of pollution is mostly caused by factories and vehicles? a) Water pollution b) Air pollution c) Noise pollution d) Light pollution 6) What is one harmful effect of using too much plastic? a) It decomposes very quickly b) It pollutes the environment and oceans c) It increases biodiversity d) It improves soil quality 7) What does a lack of environmental awareness often lead to? a) More recycling activities b) Better waste management c) Harmful behaviors toward the environment d) Stronger environmental laws 8) Why should we use renewable energy like solar and wind power? a) They are expensive and limited b) They are clean, endless, and reduce carbon emissions c) They produce a lot of air pollution d) They only work at night 9) What is one benefit of planting more trees? a) They increase CO₂ in the air b) They cause more pollution c) They absorb CO₂ and help fight climate change d) They waste a lot of water 10) Why should we save electricity and water? a) To spend more money b) To waste natural resources c) To protect the environment and save billions of kWh d) To break devices faster

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