Environmental Impact of Fossil Fuels

The video discusses the environmental impacts of fossil fuels, including greenhouse gases, acid rain, and thermal pollution. It explains the enhanced greenhouse effect and compares carbon emissions from fossil fuels and biofuels. The video also covers air pollution and its health effects, concluding with key questions for further study.

Why is it important to reduce our reliance on fossil fuels?

• They do not contribute to pollution.

• They are unlimited in supply.

• They are the only source of energy.

• They are running out and are needed for other products.

Which of the following is a greenhouse gas produced by the combustion of fossil fuels?

• Nitrogen

• Water vapor

• Helium

• Argon

What is a consequence of sulfur dioxide emissions from fossil fuels?

• Formation of ozone layer

• Acid rain

• Increase in oxygen levels

• Reduction in greenhouse gases

What is thermal pollution and how does it affect aquatic ecosystems?

• It increases the solubility of gases in water.

• It has no effect on water bodies.

• It raises water temperature, reducing gas solubility.

• It cools down water bodies, increasing fish population.

What is the enhanced greenhouse effect?

• A process that reduces greenhouse gases.

• A decrease in Earth's temperature.

• An increase in Earth's temperature due to more trapped heat.

• A natural process that keeps Earth warm.

Which human activity does NOT contribute to the enhanced greenhouse effect?

• Recycling waste

• Burning of fossil fuels

• Use of fertilizers

• Large scale farming

How do biofuels compare to fossil fuels in terms of carbon emissions?

• Biofuels can still emit significant CO2.

• Biofuels have higher energy density.

• Biofuels are completely carbon neutral.

• Biofuels emit no carbon dioxide.

What is a key component of photochemical smog?

• Carbon monoxide

• Methane

• Nitrogen dioxide

• Sulfur dioxide

What happens when acid rain reacts with limestone structures?

• It has no effect.

• It turns limestone into marble.

• It causes etching and damage.

• It strengthens the structure.

Which of the following is NOT a result of human activities on the atmosphere?

• Enhanced greenhouse effect

• Photochemical smog

• Increased oxygen levels

• Depletion of the ozone layer