IB ESS

Why is it more difficult to conserve water than enhance the supplies?

• Enhancing is quicker to achieve

• Conservation usually costs more money

• Enhancing is often a cheaper cost than conservation

• Conservation often requires a change in human attitude

Tags

NGSS.MS-ESS3-4

What is one disadvantage to enhancing water supplies by artificially recharging aquifers?

• It is very expensive to install and run a recharging plant

• Supplying the water to recharge the aquifer is often difficult to supply and distribute into the aquifer

• It is expensive to move water because it is so heavy from an area of high precipitation to an area of demand

• Using water at a lower rate than it is replenished would make the aquifer re-fill but it is difficult to get people to do

Tags

NGSS.MS-ESS2-4

Two ways which sustainable water use in cities could be achieved would be:

• Use of low water demand crops so less water is used

• Expand metering - charge only for the water used

• Increase the use of drip irrigation methods to reduce water wasted as evaporation

• Make new buildings more water efficient by recycling more water in their devices and appliances

• Store more water underground in gravel-filled reservoirs to reduce evaporation

Tags

NGSS.MS-ESS3-4

NGSS.MS-ETS1-3

Agriculture uses a large amount of water, but which crop uses the most water to produce 1 kg of food?

• wheat

• rice

• beef

• chicken

Tags

NGSS.MS-LS2-5

The diagram below shows the use of natural resources.

Does it demonstrate sustainable or unsustainable management of those resources?

• Unsustainable

• Sustainable

Tags

NGSS.MS-ESS3-4

Which of the following units may be used to measure the size of an ecological footprint?

• hectare (ha)

• km³

• m³

• global hectares (gha)

• planets

When does an ecological footprint show unsustainability?

• When the ecological footprint is greater than the area available to the population.

• An ecological footprint cannot show unsustainability.

• When the ecological footprint is smaller than the area available to the population.

• When the value of the ecological footprint is greater than 50.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

An ecological footprint is a type of a model – what exactly does it reflect?

• The hypothetical area of land required by a population to obtain all the resources needed and assimilate all their wastes.

• The point at which a resource can no longer be exploited without rendering it non-renewable.

• The measure of all waste created by a population at a given period of time.

• The maximum size of a population that an environment can support without detrimental effects.

Tags

NGSS.MS-ESS3-4

An Environmental Impact Assessment (EIA) is a detailed study undertaken prior to a development project. What does an EIA include?

• An assessment of environmental, social and economic impacts of the development project, as well as proposals for mitigation of the possible negative effects.

• A valuation of the development project providing guidance on budget planning to the contractors.

• An assessment of the environmental impact of the development project with particular emphasis on the possible losses of biodiversity in the given area.

• An outline of the positive effects that the development project can have for the local community.

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

What is natural capital?

• A store of natural resources that can produce a sustainable source of goods and services.

• Goods or services obtained by proper management of the Earth’s natural resources.

• Total area of land required to maintain food production for the growing human population.

• Total area of land required to assimilate waste produced by the growing human population.

Tags

NGSS.MS-ESS3-4