Revision EOE

Geosphere means

• Earth's metallic core, solid rock, molten rock, soil and sediments

• Water in all its forms

• Mixture of gases surrounding the planet

• Living things; eg humans, plants, animals

Which of the following does not depict the stage of a water cycle in the atmosphere?

• Condensation

• Evapotranspiration

• Evaporation

• High groundwater flow

Carbon stays a lot of time in the hydrosphere and geosphere - these places are called carbon reservoirs / carbon sinks

• True

• False

Bacteria plays a key role in

• Carbon cycle

• Nitrogen cycle

• Phosphorus cycle

• Water cycle

Which of the following statement is correct?

• Inorganic carbon can be extracted from plants and animals

• Organic carbon can be collected from the atmosphere

• Organic carbon can be extracted from oil, coal and natural gas

• Inorganic carbon can be extracted from fossil fuels

Which of the following is the least likely pathway within a water cycle?

• air to plant

• plant to air to plant

• soil to air

• plant to soil to water

Which of the following is an incorrect match?

• Geosphere - Sediment

• Hydrosphere - Pacific ocean

• Atmosphere - Nitrite

• Biosphere - Pine tree

Which of the following statement is correct?

• Phosphorus cycle is caused by weathering of rocks

• Nitrogen cycle is the slowest cycle

• The benefit of using artificial fertilisers includes increased amount of Nitrogen in ponds

• The disadvantage of fertilisers includes increased amount of phosphorus around plant roots.

Which of the following statement describes the role of greenhouse gases? (Select all)

• Increase the amount of energy reaching the surface

• Protect living things from dangerous high-energy radiation from Sun

• Increases the energy going out of the earth

• Limit the amount of energy reaching the Earth's surface

Which of the following statement is correct?

• Greenhouse gases always cause global warming

• Plants use nitrogen in the atmosphere as a source of nutrients

• Nitrogen fixing bacteria in the geosphere convert nitrogen into accessible form

• Greenhouse gases include carbon dioxide, methane, nitrous oxide and hydrogen chloride.