6.4 Acid Deposition Quiz

What are the primary pollutants leading to acid rain?

• Carbon monoxide and nitrogen dioxide

• Sulphur dioxide and nitrous oxides

• Ozone and particulate matter

• Methane and carbon dioxide

What is the pH scale a measure of?

• The concentration of carbon dioxide in a solution

• The concentration of hydrogen ions (H⁺) in a solution

• The concentration of oxygen in a solution

• The concentration of nitrogen in a solution

Which of the following is an indirect effect of acidic rain on soil?

• Enhanced effectiveness of symbiotic bacteria

• Improved ability to hold onto nutrients

• Reduced productivity of the soil

• Increased availability of mineral ions for plants

What are sources of nitrogen for plants?

• Nitrogen oxides in the atmosphere

• Sulphur dioxide in the atmosphere

• Ammonia from farming or organic processes

• Nitric acid in rainwater

Which of the following is a direct effect of acidic rain on forest ecology?

• Enhanced ability of trees to withstand low temperatures

• Increased resistance of trees to pathogens

• Reduced growth and productivity of trees

• Improved availability of nutrients for trees

What is the main purpose of adding limestone powder to acid lakes?

• To reduce the solubility of heavy metals in the water

• To increase the acidity of the water

• To neutralize the acid present and increase the pH of the water

• To enhance the toxic effects of the acid on aquatic organisms

Which of the following is an indirect toxic effect of acidic rain on aquatic organisms?

• Formation of a solid on the fish's gills leading to suffocation

• Chronic stress leading to reduced body weight in fish

• Enhanced ability of fish to regulate the amount of water and salts in their bodies

• Increased intake of oxygen and salt by fish

What is the main reason for the degradation of limestone buildings and statues due to acid rain?

• The acid reacts with the calcium carbonate releasing hydrogen

• The acid reacts with the calcium carbonate releasing nitrogen

• The acid reacts with the calcium carbonate releasing oxygen

• The acid reacts with the calcium carbonate releasing carbon dioxide

Which of the following is a strategy to control the release of pollutants?

• Adding limestone powder to acid lakes

• Encouraging home-working to reduce transportation requirements

• Using acid resistant building materials instead of limestone

• Reducing the sulfur content of fossil fuels

What is the main impact of acid rain on lichen ecology?

• Decreased availability of air pollution for lichens

• Reduced distribution of lichen indicator species

• Enhanced tolerance of lichens to heavy air pollution

• Increased distribution of lichen indicator species