OCR B2 Revision Flashcards: Amy and Lacey - Population and pollution

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What are the three most concerning types of pollution?
Carbon dioxide form burning fossil fuels, CFCs destroy the ozone layer, sulfur dioxide from burning fossil fuels causing acid rain.
1 of 10
What is the name of the ever increasing growth of the human population?
Exponential growth.
2 of 10
True or false: Birth rate is exceeding death rate
True: hence the growth in population
3 of 10
True or false: population growth is highest in developed countries.
False: it is higher in less deveoped countries due to a lack of contraception. But developed land masses like the USA use the most fossil fuels.
4 of 10
What is the amount of pollution caused by a company or individual called?
Carbon Footprint: it measures the amount of greenhouse gasses given off by the person or organisation.
5 of 10
What are the two ways of measuring pollution?
Indicator species and direct methods.
6 of 10
Name a direct method.
Oxygen probes measure how much oxygen is in a pond.
7 of 10
Name two indicator species.
Lichen grows on trees and rock only where air is clean. Mayfly Larva can only live in clean water. The water louse, bloodworms and mussels can live in polluted water.
8 of 10
What are advantages of using indicator species?
Cheaper, does not need equipment that can go wrong and monitors pollution over long period of time.
9 of 10
Name the advantages of using direct methods.
Can give more accurate results as any specific time.
10 of 10

Other cards in this set

Card 2

Front

What is the name of the ever increasing growth of the human population?

Back

Exponential growth.

Card 3

Front

True or false: Birth rate is exceeding death rate

Back

Preview of the front of card 3

Card 4

Front

True or false: population growth is highest in developed countries.

Back

Preview of the front of card 4

Card 5

Front

What is the amount of pollution caused by a company or individual called?

Back

Preview of the front of card 5
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