Enviro Edu QuizOnline version Environmental basics quiz by Arnab Biswas 1 What is the primary cause of air pollution in urban areas? a Industrial emissions b Deforestation c Volcanic activity d Ocean pollution 2 How can individuals contribute to reducing water pollution? a pouring chemicals into water bodies b Using plastic products c Properly disposing of waste d Wasting water 3 What is the term for the gradual increase in the Earth's average temperature due to human activities? a Ice age b Global warming c Greenhouse effect d El Niño 4 Why is it important to conserve energy in our daily lives? a To increase pollution b To waste resources c To save money d To contribute to climate change 5 What can individuals do to promote biodiversity? a Plant native trees and flowers b Hunt endangered species c Remove natural habitats d Use pesticides to control insects 6 How does recycling help the environment? a By promoting deforestation b By increasing waste in landfills c By conserving resources and reducing pollution d By depleting natural resources 7 What is the purpose of the ozone layer in the Earth's atmosphere? a To protect against harmful ultraviolet (UV) radiation b To create rain clouds c To trap heat and warm the planet d To absorb carbon dioxide 8 What is the term for the process of turning waste materials into reusable materials? a Disposal b Recycling c Decomposition d Incineration 9 How can individuals help reduce their carbon footprint? a Eating a meat-heavy diet b Using fossil fuels excessively c Driving fuel-efficient vehicles d Wasting electricity 10 Why is it important to protect endangered species? a To reduce competition for resources b To encourage their extinction c To exploit them for commercial purposes d To maintain biodiversity and ecological balance Feedback 1 Industrial emissions from industry and transport are the main urban pollutants. 2 Proper waste disposal and reducing litter prevents contaminants from reaching water bodies. 3 Global warming refers to long-term temperature rise driven by human activities. 4 Conserving energy lowers bills and reduces greenhouse gas emissions. 5 Native plants support local ecosystems and attract beneficial wildlife. 6 Recycling reduces need for new materials and lowers pollution. 7 The ozone layer shields living things from UV radiation. 8 Recycling processes materials into new products instead of trash. 9 Efficient transport reduces greenhouse gas emissions. 10 Protecting species helps preserve ecosystems and services.