Ess Topic 8

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

NGSS.MS-ETS1-1

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

Potable water is water which is safe to drink, which of the following would NOT make the water unsafe?

• bacteria

• impurities

• sewage

• phytoplankton

Which if these physical factors do NOT influence water supplies?

• precipitation patterns

• condensation temperatures

• evapotranspiration rates

• groundwater supplies and access

Tags

NGSS.MS-ESS2-4

Which of these human factors does NOT influence water supplies?

• civil water and conflicts

• urban / rural distribution of populations

• the majority environmental viewpoint of the population

• degree of water contamination as a consequence of infrastructure

Tags

NGSS.MS-ESS3-4

What are two reasons FOR building the 3 gorges dam?

• US$30 billion investment in the building of the largest power stations in the world

• Reduction in the flooding of the river and therefore the loss of life, economics and habitats in the surrounding area

• Created an increased in siltation in front of the dam as the water velocity slows down before the generators. Downstream receives less silt deposits

• Having so much power generated by one source means that it has a high importance

• Reduction of China's carbon emissions as 9% of energy supplied by renewable resource

Tags

NGSS.MS-ESS2-4

NGSS.MS-ETS1-1

What are two reasons AGAINST building the 3 gorges dam

• Loss of human historical sites and communities

• Increased electricity supplies to the Chinese populations

• Increased affluence and resources for the local populations

• Increased eutrophication to the surrounding ecosystems as sewage treatment is minimal

• Decreased niches and habitats leading to species such as Yangtze sturgeon and Yagtze river dolphin reduced populations

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-4

NGSS.HS-LS4-5

An interaction between two species where both benefit from the relationship. (2.1.9)

• parasitism

• mutualism

• Lincoln index

• salinity

Tags

NGSS.MS-LS2-2

An interaction where one organism (predator) kills and eats another (prey). (2.1.9)

• predation

• transect sampling

• K-strategist

• habitat

A technique or sampling method for studying organism distribution along a line across an environmental gradient.