Economic Developement

Question 1

Environmental threats of economic activity causes

Food production

Answer 1

Leeching

Description of soil

Chemical spray

Deforestation Of an area

Killing habitats for food

Air pollution from machines

Question 2

Environmental threats of economic activity causes

Industry

Answer 2

Loss of habitat

Acid rain

Creates greenhouse gases

Impacts on food chain

Global warming

Atmospheric pollution

Kills animal

Question 3

Environmental threats of economic activity causes

Tourism

Answer 3

Destruction of habitat

Damage of corals

Increase pollution from travel

Kills habitat by building hotels

Litter from tourist can kill animal

Question 4

Environmental threats of economic activity causes

Energy

Answer 4

Transporting fuels create pollution

Pollution created by using energy supplies

Fracking from the ground

Visual pollution from the factories, ugly and smoke

Noise pollution from the factories

Question 5

Environmental threats of economic activity causes

Water supply

Answer 5

Drowns and kills species

Washes soil

Affects biodiversity and wild life

Climate change may lead to drought , drying out certain areas

Becomes poisonous from mixing with sewage and chemicals waste

Question 6

Air pollution threats local and global

Answer 6

• lead can affect the brain development of children
• indoor air pollution is worse in LEDC due to biomass heating and fuel
• gives people asthma attacks transportation
• greenhouse gases can lead to climate change
• to it air pollutants can cause cancer
• CO can reduce oxygen trans

Question 7

Water pollution local and global

Answer 7

-eutrophication From nitrate kills water animals

Increase in cancer rate from anti cancer medicines in the sewage’s into water supply

Destruction of ecosystem

Chemical sprays and fuel leaks may contaminate

Question 8

Noise pollution local

Answer 8

Increase human blood pressure

Reduce ability to sleep

High decibels can kill animal hearing

Causes behaviour problems as animal use sound for signals

Question 9

Visual Pollution

Answer 9

Eyesore and distressing to users

May devalue house prices in the area

Question 10

Economic activities generate green house gases

Answer 10

carbon dioxide, methane, nitrous oxides and ozone are examples - management
•use clean energy
•recycle
•electric car
•plant trees
•line dry clothes
•don’t leave things on standby

Question 11

Effects of enhanced global warming

Answer 11

global temperature variations and heatwaves
•rising sea levels
•melting of ice caps
•increasing acidity in oceans
•growth of the tropical belt
•destroying ecosystems

Question 12

Soil erosion causes

Answer 12

• results from high population pressure
  * deforestation
  * overgrazing of natural pastures
  * poor agricultural practices
  * absence of soil conservation of marginal land

Question 13

Consequences of soil erosion and desertification social

Answer 13

loss of traditional knowledge and skills
•forced migration due to food scarcity
•social tensions in reception areas for migrant

Question 14

Desertification causes

Answer 14

gradual transformation of habitable land to desert

caused by climate change and destructive land use

natural causes may include temporary droughts period occurs when already fragile land in arid areas is overused

Question 15

Consequences of soil erosion and desertification social

Answer 15

loss of traditional knowledge and skills

forced migration due to food scarcity

social tensions in reception areas for migrant

Question 16

consequences of soil erosion and desertification economic

Answer 16

reduced income from traditional economy

decreased availability of fuelwood, leading to purchasing oil

increased dependence on food aid

increased rural poverty

migration causes loss of tax revenue

Question 17

consequences of soil erosion and desertification environmental

Answer 17

loss of soil nutrients from wind and soil erosion

changes in composition of vegetation

loss of biodiversity

reduction in available land for farming

increased sedimentation of streams because of soil erosion

dust storms due to activity breaking up matter further

Question 18

Management of soil erosion

Answer 18

•use fertilisers

contour ploughing

plant trees

prevent water from being channelled downslope

do not overgraze

use wind protectors

Question 19

Define desertification

Answer 19

The process by which fertile land becomes less productive

Question 20

Reduce desertification

Answer 20

Afforestation->roots bind soil

Contour ploughing-> so less soil erosion

Education about agriculture techniques
->less surface runoff

Crop rotation -> less deforestation

Terracing maintain soil fertility

Question 21

Explain why greenhouse gases are building up in the atmosphere

Answer 21

Burning fossil fuel
-> oil and coal

Cars

Aircraft emission

Deforestation

Carbon dioxide

Methane from livestock

Industry

Question 22

Explain how acid rain can cause problems for the whole food chain

Answer 22

Acid rain can cause serious problem for many animals and plants as a result the entire food chain is affected.

Question 23

Explain how the effect of acid rain could be reduced

Answer 23

Produce energy without fossil fuels

People can use renewable energy such as solar and wind power

Renewable energy sources helps reduce acid rain because they don’t produce much pollution

Burning coal which contain less sulfur

Flue gas desulphurisation

Using unleaded petrol

Question 24

Negative effects of global warming

Answer 24

Pressure on ecosystem

Temperature rises

Water shortages

Sea water level increases

Climate change

Loss of biodiversity

Desertification

Loss of industry-tourism and fishing affected as sea level rises

Flash floods

Droughts

Question 25

Affects of acid rain

Answer 25

Acidification of soil - > kill the organism - > damage ecosystem Corrosion of buildings -> building surfaces get corroded Damage human health Acidification of rivers and lake - > weakening of shells such as insects - > aquatic flora and fauna die from high acidity of water

Question 26

Effects on effects of rivers acid rain

Answer 26

Acidic water through soil water flow Fishes can’t swim in acidic waters They can die

Question 27

Soil effects acid rain

Answer 27

Plants grow a slower Take up acidic water Plant is effectively poisoned Reduce amount of crops acid rain can make the nutrients and mineral in the soil unusable

Question 28

Human effects acid rain

Answer 28

Asthma increase Eye and throat irritation Buildings are getting corroded

Question 29

Finiacial effects acid rain

Answer 29

Cost of loss of productive farming land Cost to loss of fishing Cost to loss of healthcare system Cost to repair buildings

Question 30

Climate change impacts

Answer 30

Sea level rises Temperature Precipitation - health impacts - > air quality - asthma Agriculture impacts - crops yield - irrigation demands Forest impacts Change forest composition Water resources Change water supply Water quality

Question 31

Positive impacts on global warming

Answer 31

Increased agriculture land Possible to grow more Reduction in cold death Release of freshwater- reduce drought Reduced heating-people can heat propety less Accessibility of resources

Question 32

Global warming solution

Answer 32

Afforestation Reduce reuse and recycle Renewable energy Carbon sequestration International agreements

Question 33

Adaptation global warming

Answer 33

Build more sea defences Improved meteorology -predict and track events so that pollution can be warned and therefore prepare Disease treatment-if the strength of the sun rays intensify disease like skin cancer will nor’easter we will have to improve treatment Desalination Resettlement - rising sea level will create climate refugee in countries like the Maldives and Bangladesh

Question 34

Explain why global warming is a threat to natural environment

Answer 34

Melting ice glaciers Loss of habitat Rising sea level Loss of species Forest fires Vegetation loss Increasing droughts Forest fire Loss of habitat

Question 35

Help conserve natural resources

Answer 35

Afforestation Save energy Use less resources Waste product becomes useful Resources last longer Make more uses

Question 36

Importance of conserving natural resources and natural environment

Answer 36

Protect habitat Prevent global warming Species don’t become extinct Many non renewable are finite Conserving the natural environment will ensure ecosystem