WorksheetsAcid Deposition
Total questions: 15
Worksheet time: 15mins
Impacts of acid deposition include
leaching of aluminum into soils
increase in photosynthetic activity for aquatic plants
increases in aquatic biodiversity
physical damage to leaves & bark of trees
Which chemical reaction represents a cause of acid rain?
H2O + CO2 −> H2CO3
H2O + SO2 −> H2CO3
H2O + NO2 −> H2SO4
H2O + SO2 −> H2SO4
Which mineral would you add to a lake to neutralize acidic conditions (increase the pH)?
Acetic acid
Calcium carbonate
Ammonia
Bleach
Which of the following statements is true about both photochemical smog & acid rain?
Nitrogen oxides are important primary pollutants.
Sulfuric acid is a secondary pollutant involved in both.
Tropospheric ozone is produced in both.
A solution to both is reducing the number of gas-powered vehicles on the road.
What is the pH of normal, unpolluted rain?
7
5.6
4.3
7.6
Wet deposition may be considered acidic if its pH is anything below:
5.5
9.5
8.5
7.5
Acid deposition leads to an increased solubility of metals such as aluminium. This means that they dissolve easier in water and may pose a threat to aquatic organisms. What is the effect of such dissolved aluminium ions on fish populations?
Aluminium ions do not affect fish populations in any way.
Aluminium ions lead to a production of mucus that clogs up their gills and stops fish from breathing.
Aluminium ions provide a rich source of minerals for fish to use for growth.
Aluminium ions irritate the digestive system of fish to the point where they can no longer process the food.
The main primary pollutants that contribute to the formation of acid deposition are:
Sulphur dioxide and nitrogen dioxide
Sulphur dioxide and nitrogen oxides
Sulphur monoxide and nitrogen monoxide
Sulphur oxides and nitrogen dioxide
Which of the following statements about acid deposition in a lake is correct?
Acid deposition increases overall biodiversity in a lake.
Acid deposition increases crayfish in a lake.
Acid deposition increases trout and salmon in a lake.
Acid deposition increases sphagnum moss in a lake
Which of the following statements about acid deposition on soils is correct?
Acid deposition on soils increases the nutrients available to plants.
Acid deposition on soils increases the exposure of plants to aluminum ions.
Acid deposition on soils increases plant tolerance to pests.
Acid deposition on soils increases crop yields.
Soot or smoke, if acidic, are considered to be:
Secondary deposition
Primary deposition
Wet deposition
Dry deposition
Name a chemical often used to neutralize acidified lakes.
calcium carbonate
Hydro chloric acid
Sulfur dioxide
Nitrogen oxide
What is the primary cause of acid deposition?
Burning of fossil fuels releasing sulfur dioxide and nitrogen oxides
Deforestation leading to increased carbon dioxide levels
Excessive use of fertilizers in agriculture
Natural volcanic eruptions
Which of the following is a common method to reduce the effects of acid deposition on aquatic ecosystems?
Adding sulfuric acid to neutralize the water
Introducing more fish species to the ecosystem
Applying lime (calcium carbonate) to the water
Increasing the water temperature
How does acid deposition affect soil nutrient availability?
Increases the availability of essential nutrients
Decreases the availability of essential nutrients
Has no effect on nutrient availability
Increases the availability of toxic metals
