OCR B: Resource Reliance: Modifying Environments

How many ways have we studied on human's modifying environments to gather resources?

• 4

• 5

• 6

• 7

Which of these are a negative impact on the environment caused by mechanisation of farming? Select 2

• Soil erosion caused by heavy machinery

• Removing hedgerows decreases biodiversity

• Removing trees can increase the risk of flooding

• CO2 is emitted when fossil fuels are burnt which contributes to global warming

Which of these are a negative impact on the environment caused by commercial fishing? Select 2

• Dredging damages sea floor environments

• Removing hedgerows decreases biodiversity

• Lots of energy is needed to transport water over long distances

• Over-fishing can lead to the endangerment of some species and can impact the whole food chain

Which of these are a negative impact on the environment caused by deforestation for energy? Select 2

• Dredging damages sea floor environments

• Cutting down trees can increase the likelihood of flooding

• Lots of energy is needed to transport water over long distances

• Trees collect CO2 from the atmosphere, by cutting them down the increased CO2 can contribute to global warming

What is meant by resource?

• A stock or supply of something that has a value or a purpose

• Something that we use daily

• Electricity

• Water

What are the two reasons for our increasing demand on resources

• Increased population

• Improved healthcare

• Increase in economic development over the world

• Change in lifestyle and diet

Which of these are a negative impact on the environment caused by mining for energy? Select 2

• Coal, oil and gas are not sustainable sources of energy

• Cutting down trees can increase the likelihood of flooding

• Lots of energy is needed to transport water over long distances

• It can take a huge about of water (another limited resource)

Which of these are a negative impact on the environment caused by reservoirs for water supply? Select 2

• They can flood land - destroying habitats

• By creating a block in the river in can effect species like salmon

• Over-fishing can endanger some species

• Removing hedgerows can lower biodiversity

Which of these are a negative impact on the environment caused by water transfers? Select 2

• They can flood land - destroying habitats

• Lots of energy (electricity) is needed to pump the water from A to B

• Building the channelling systems themselves will damage the environment

• Waste from mineral extraction can pollute water sources

What resource is this for?

• Food

• Water

• Energy