Exploring Soil Composition and Its Environmental Impact

What were the main rivers supplying water to the Aral Sea before 1960?

• Mississippi and Missouri

• Ganges and Yangtze

• Amu Darya and Syr Darya

• Nile and Amazon

What caused the Aral Sea to shrink significantly by the 1980s?

• Natural evaporation

• Increased rainfall

• Industrial pollution

• Diversion of river water for agriculture

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-4

What is the 'flour' in the soil cake analogy?

• Humus

• Parent material

• Water

• Air

What does humus in soil primarily come from?

• Living organisms

• Air

• Water

• Broken rocks

Which horizon is commonly referred to as topsoil?

• O horizon

• A horizon

• B horizon

• C horizon

What is the process called when finer particles are leached and carried down with soil water?

• Eluviation

• Laterization

• Podzolization

• Calcification

How long can it take for a few centimeters of prime farmland soil to develop?

• 1000 years

• 500 years

• 100 years

• 50 years

What is the role of soil scientists?

• Leading conservation efforts

• All of the above

• Determining soil suitability for different uses

• Mapping and analyzing soil types

What soil-forming process occurs in the Congo rainforest?

• Laterization

• Eluviation

• Podzolization

• Calcification

Tags

NGSS.MS-LS2-3

What is the significance of December 5th according to the UN food and agriculture organization?

• World Environment Day

• World Water Day

• World Agriculture Day

• World Soil Day