5.3 Soil Degredation II

Which two processes can give rise to soil degradation?

• Erosion

• Decomposition

• Unsustainable agriculture

• Forest Fires

Overgrazing occurs when

• Very few cattle are kept in a large area

• Large numbers of cattle are kept in a area

• Mococulture is used

• Farmers harvest all of the crops at one time

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of these methods can be used to reduce wind erosion (Select Multiple Answers)

• Planting trees between fields

• Alternating high and low crops

• Crop rotation

• Planting crops in rows

Terracing is a common farming practice used in

• Cities

• On level ground

• Mountainous regions or on slopes

• When soil quality is poor

Trickle flow is a method of

• Soil rotation

• Crop filtration

• Water filtration

• Irrigation

Trickle flow systems can be used to reduce...

• Crop Quality

• Evaporation of water

• Pest damage to crops

• Damage to crops from the sun

Tags

NGSS.MS-ETS1-2

Trickle irrigation made it possible to...

• Grow cactus in the desert

• Grow fruits and vegetables in the Sahara Desert

• Grow roses in desert countries

• Feed cattle in the desert

Which of these is not a soil conserving cultivating technique

• Removing all crops during a single harvest

• Plowing the fields regularly

• Terracing fields on sloped areas

• Growing cover crops between rows of main crops

What can be added to soil to reduce the acidity (Select Multiple Answers)

• Crushed Limestone

• Calcium Carbonate

• Chalk

• Organic Materials

What can be ploughed into a field to improve the texture of the soil and act as a supply of nutrients? (Select Multiple Answers)

• Straw

• Curshed Lime Stone

• Chalk

• Manure