Problems caused by air, water & land pollution

Which of the following pollute land?

• Carbon dioxide

• Pesticides

• Sewage

• Industrial waste chemicals

In eutrophication, which organisms greatly increase in abundance first?

• Fish

• Algae

• Microorganisms

• Water plants

In eutrophication, which organisms greatly increase in abundance second?

• Fish

• Algae

• Microorganisms

• Water plants

In eutrophication, what is reduced to extremely low levels in the water?

• oxygen

• carbon dioxide

• mineral ions

• fertilisers

What is the build up of toxic chemicals in the bodies of organisms as you go higher up a food chain, called?

• metabolic concentration

• biodiversity

• bioaccumulation

• gradient toxicity

What is a bioindicator species?

• a species that can break down pollutants into harmless substances.

• a species that can only live in the most extreme environments.

• a species that changes colour when polluting chemicals are present.

• a species whose presence/absence can given information on levels of pollutants in a habitat.

What are the 2 main acids in acid rain?

• Nitric acid

• Hydrochloric acid

• Carbonic acid

• Sulfuric acid

Which human activity contributes most significantly to acid rain?

• Farming

• Deforestation

• Creation of landfill sites

• Burning fossil fuels

What directly helps to reduce acid rain?

• Catalytic converters

• Waste recycling

• Flue gas clean up systems

• Low sulfur petrol and diesel

What reflects sunlight away from the Earth in 'global dimming'?

• carbon dioxide

• solar panels

• particulate matter in smoke

• the moon