Unit-3: Environmental Pollution Flashcards
What is air pollution?
Air pollution is the contamination of the atmosphere by harmful substances like gases, dust, and smoke.
Name two causes of air pollution.
Industrial emissions and vehicular exhaust.
Mention one effect of air pollution on health.
It causes respiratory problems like asthma and bronchitis.
Give one control measure for air pollution.
Promote the use of cleaner fuels like CNG and renewable energy.
Q: Define water pollution.
A: Water pollution is the contamination of water bodies by harmful substances such as chemicals and waste.
Q: Name one cause of water pollution.
A: Untreated industrial discharge into rivers.
Q: State one effect of water pollution.
A: It causes waterborne diseases like cholera and dysentery.
Q: What is one way to control water pollution?
A: Treating wastewater before discharging it into water bodies.
Q: What is soil pollution?
A: Soil pollution is the contamination of soil due to chemicals, waste, and other harmful substances.
Q: Name one cause of soil pollution.
A: Excessive use of pesticides and fertilizers.
Q: State one effect of soil pollution.
A: Loss of soil fertility and contamination of crops.
Q: How can soil pollution be controlled?
A: By promoting organic farming and reducing chemical use.
Q: Define marine pollution.
A: Marine pollution is the contamination of oceans and seas by pollutants like plastics and oil spills.
Q: Name one source of marine pollution.
A: Dumping of plastic waste into the ocean.
Q: What is one effect of marine pollution?
A: It harms aquatic ecosystems and marine life.
Q: Suggest one way to reduce marine pollution.
A: Implement strict laws against ocean dumping.
Q: What is noise pollution?
A: Noise pollution is the excessive and harmful levels of sound in the environment.
Q: Mention one source of noise pollution.
A: Traffic on roads.
Q: State one effect of noise pollution on humans.
A: Hearing loss and increased stress levels.
Q: How can noise pollution be controlled?
A: By using soundproof materials and limiting loudspeaker use.
Q: What is thermal pollution?
A: Thermal pollution is the rise in water temperature due to the discharge of heated water by industries.
Q: Name one cause of thermal pollution.
A: Power plants releasing hot water into rivers.
Q: State one effect of thermal pollution.
A: It reduces oxygen levels in water, harming aquatic life.
Q: How can thermal pollution be minimized?
A: By using cooling ponds or towers.
Q: Define plastic pollution.
A: Plastic pollution is the accumulation of plastic products in the environment, affecting ecosystems.
Q: Name one cause of plastic pollution.
A: Overuse of single-use plastics.
Q: What is one effect of plastic pollution?
A: It harms marine animals who ingest plastics.
Q: Suggest one control measure for plastic pollution.
A: Promote the use of biodegradable alternatives.
Q: What is radioactive pollution?
A: Radioactive pollution is the release of radioactive substances into the environment.
Q: Name one source of radioactive pollution.
A: Nuclear power plant accidents.
Q: State one effect of radioactive pollution.
A: It causes cancer and genetic mutations.
Q: How can radioactive pollution be controlled?
A: Proper disposal of nuclear waste and safety measures in plants.
Q: What is solid waste management?
A: It is the process of managing solid waste to reduce its environmental impact.
Q: Name one cause of solid waste accumulation.
A: Rapid urbanization
Q: State one effect of solid waste.
A: Overflowing landfills lead to air, water, and soil pollution.
Q: How can solid waste be managed effectively?
A: Through recycling, composting, and waste segregation at the source.
Q: How can individuals prevent air pollution?
A: By using public transport and conserving energy.
Q: Name one way an individual can reduce water pollution.
A: Avoid disposing of chemicals or oils down the drain.
Q: What is one action individuals can take to manage solid waste?
A: Practice the 3Rs: Reduce, Reuse, Recycle.
Q: How can individuals prevent plastic pollution?
A: Use reusable bags and avoid single-use plastics.
Q: What are the causes of earthquakes?
A: Movement of tectonic plates or volcanic activity.
Q: State one effect of a cyclone.
A: Flooding and destruction of infrastructure.
Q: What is the impact of landslides?
A: Loss of land and blockage of roads.
Q: What is one role of disaster management in earthquakes?
A: Providing early warning systems and rescue operations.
