CLS Human Influences on the environment

Which gas is primarily responsible for the formation of acid rain?

• Sulphur dioxide

• Carbon dioxide

• Methane

• Nitrogen

What is a major effect of deforestation on the environment?

• Increased oxygen production

• Decreased soil erosion

• Loss of biodiversity

• Lower carbon dioxide levels

Which of the following is a greenhouse gas?

• Oxygen

• Methane

• Nitrogen

• Argon

What is eutrophication most commonly caused by?

• Acid rain

• Overfishing

• Excess fertilisers entering water bodies

• Deforestation

Which pollutant is produced by incomplete combustion of fossil fuels?

• Carbon monoxide

• Carbon dioxide

• Nitrogen

• Sulphur dioxide

What is a key advantage of fish farming?

• Provides a controlled environment for breeding

• Increases wild fish populations

• Reduces water pollution

• Prevents all diseases

Which of the following is NOT a consequence of acid rain?

• Increased crop yields

• Damage to limestone buildings

• Acidification of lakes

• Harm to aquatic life

Which process removes carbon dioxide from the atmosphere?

• Respiration

• Photosynthesis

• Combustion

• Decomposition

Which human activity is a major contributor to the greenhouse effect?

• Burning fossil fuels

• Planting trees

• Recycling

• Using wind energy

What is a direct effect of eutrophication in freshwater lakes?

• Increased oxygen levels

• Algal blooms

• Decreased nutrient levels

• Reduced water temperature