Acid Rain Flashcards
What are 3 effects of acid rain?
1) reacts with metal and calcium carbonate in limestone and marble, causing corrosion in metal bridges and stone buildings.
2) lowers pH of natural water from 6.5 to 8.5 to below 4, which is too acidic for aquatic life to survive.
3) leaches important nutrients from soil, hence causes plants to wither and die.
What are 2 solutions to reduce effect of acid rain?
We can reduce acid rain through the use of catalytic converters and flue gas by desulfurisation.
What is a catalytic converter?
A catalytic converter is attached to the exhaust system of a car, containing the catalysts platinum and rhodium.
State the two ways of minimizing the effects of sulfur dioxide pollution.
1) to remove sulfur from fossil fuels before burning. However, this method is expensive and difficult.
2) to remove sulfur from the waste gases from burning, known as desulfurization. The waste gases are called flue gases. Flue gas desulfurization (FGD) is widely used as a way of controlling sulfur dioxide emissions from large stationary sources including power stations.
Name 3 ways to reduce air pollution caused by motor vehicles.
1) burn less fossil fuels
2) future control measures like the use of alternative fuels such as methanol and hydrogen, and the development t of electric-powered motor vehicles.
Define fossil fuels.
Fossil fuels Are fuels formed by nature resources such as decomposition of buried dead organisms millions of years ago and contain high percentage of carbon and hydrocarbon.
Define methane.
Methane is a colorless and odorless gas produced when plant and animal matter decay. It is also produced from the decay of rubbish in landfills.
What is crude oil?
Crude oil is also known as petroleum that provides 40% of the world’s energy. It is a dark brown, foul-smelling liquid. It is a mixture of hydrocarbons.
State the source of Acid rain.
Sulfur dioxide and nitrogen dioxide. They react with rainwater.
