G8-BIO-L7 Pollution of Air and Water

What is the primary gas that constitutes about 78% of the air we breathe?

• Oxygen
• Carbon Dioxide
• Nitrogen
• Argon

Which of the following is NOT a source of air pollution?

• Automobile exhaust
• Volcanic eruptions
• Plant photosynthesis
• Factory emissions

What is smog primarily composed of?

• Water vapor and oxygen
• Smoke and fog
• Carbon dioxide and nitrogen
• Dust and pollen

Which gas is produced from the incomplete burning of fuels and is considered poisonous?

• Carbon Dioxide
• Methane
• Carbon Monoxide
• Nitrogen Dioxide

What phenomenon occurs when pollutants like sulphur dioxide and nitrogen dioxide mix with water vapor?

• Acid rain
• Greenhouse effect
• Ozone depletion
• Global warming

What is the term used to describe the increase in Earth's average temperature due to excess greenhouse gases?

• Ozone depletion
• Global warming
• Acid rain
• Air pollution

Which of the following is a major contributor to the yellowing of the Taj Mahal?

• Natural weathering
• Acid rain
• Plant growth
• Animal waste

What is the primary purpose of the Ganga Action Plan launched in 1985?

• To promote tourism
• To reduce pollution levels in the river
• To increase industrial output
• To enhance agricultural practices

Which gas is known to damage the ozone layer?

• Carbon Dioxide
• Chlorofluorocarbons (CFCs)
• Nitrogen Dioxide
• Sulphur Dioxide

What is the greenhouse effect?

• The process of plants absorbing CO2
• The trapping of heat in the Earth's atmosphere
• The cooling of the Earth's surface
• The increase of oxygen in the atmosphere