Class 7 chapter 9 Soil

Identify the layers of soil (IN ORDER)

• Clay, Water, Humus, Sand, Gravel

• Water, Humus, Clay, Gravel, Sand

• Humus, Water, Clay, Sand, Gravel

• Water, Humus, Clay, Sand, Gravel

Percolation rate is highest in________

• Sandy Soil

• Loamy Soil

• Clayey Soil

• Sandy-Loam

Characteristics of sandy soil

• Heavy Weighted

• Light Weighted

• Aerated

• Dry

Which soil is used to make pots, Toys and statues?

• Sandy soil

• Sandy-Loam

• Loamy soil

• Clayey Soil

In deserts soil erosion occurs through

• Hail

• Wind

• Sand dunes

• Weather

Clay and Loam are suitable to grow cereals like-

• Wheat

• Maize

• Soya beans

• Rice

In which horizon of soil minerals are found?

• A

• B

• C

• Bedrock

Soil conservation measures are mainly aimed at protecting which of the following?

• Plants

• Topsoil

• Sub soil

• Soil organisms

Erosion of soil is more severe in areas of high vegetation.

• False

• True

……………… is a section through different layers of the soil.

• Percolation rate

• Absorption

• Horizons

• Soil Profile