B2g-population And Pollution Flashcards Preview

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Flashcards in B2g-population And Pollution Deck (16)
1

What are some finite resources the human population uses?

Fossil fuels
Minerals

2

How does increasing human population cause pollution?

Increased resource use
Household waste
Sewage
Sulfur dioxide and carbon dioxide from burning fossil fuels

3

What does rising exponentially mean?

Increasing very quickly

4

What are the causes and consequences of global warming?

Carbon dioxide greenhouse gases trap heat in the atmosphere which causes global temperature to rise

5

What are the causes and consequences of acid rain?

Sulfur dioxide
Reacts with water in atmosphere makes sulfuric acid
Damages soils, buildings & statues
Kills trees
Changes PH in lakes

6

What are the causes and consequences of ozone depletion?

CFCs
Break down ozone
More harmful uv rays reach earth
Kill plankton

7

What is a carbon footprint?

The amount of greenhouse gases given off in a certain period of time

8

Why do developed countries cause a large proportion of pollution?

Demand more resources
More people have access to technology

9

How to lichens show pollution?

Monitor air quality
Damaged by pollution
Cleaner the air, more lichens

10

How do mayfly larvae show pollution?

Monitor water quality
Die in polluted water
Cleaner water, more mayfly larvae

11

What species show polluted water?

Water louse
Rat tailed maggots
Sludgeworms

12

How can pollution be measured?

By direct measurement of pollutant levels
By measuring the occurrence of indicator species

13

What are the advantages of using living methods?

Quick
Cheap
Easy

14

What are the disadvantages of using living methods?

Not always reliable

15

What are the advantages of using non living methods?

Reliable
Numerical data easy to compare between different sites
Exact pollutants identified

16

What are the disadvantages with using non living methods?

Expensive equipment
Trained workers