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प्रश्न
Soil conservation measures are mainly aimed at protecting which of the following?
विकल्प
Plants
Top soil
Sub soil
Soil organisms
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उत्तर
Top soil
Explanation:
Top soil is rich in humus which is dark brown in colour and consists of the decaying remains of plants and animals. Humus improves the texture of the soil and provides nutrients for plant growth. So, it is the most fertile region and soil conservation measures are mainly aimed at protecting top soil. If top soil is protected or conserved then subsoil is also conserved because it lies below the top soil.
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संबंधित प्रश्न
Distinguish between the following pair
Soil erosion and soil conservation
Name any four agents of erosion.
What are the components of topsoil?
Name the various methods of conserving soil.
Distinguish between contour tilling and contour bunding.
Unscramble the following jumbled word related to soil.
\[\boxed{\text{S}}\]\[\boxed{\text{U}}\]\[\boxed{\text{H}}\]\[\boxed{\text{U}}\]\[\boxed{\text{M}}\]
Unscramble the following jumbled word related to soil.
\[\boxed{\text{I}}\]\[\boxed{\text{L}}\]\[\boxed{\text{O}}\]\[\boxed{\text{S}}\] \[\boxed{\text{F}}\]\[\boxed{\text{I}}\]\[\boxed{\text{P}}\]\[\boxed{\text{R}}\]\[\boxed{\text{O}}\]\[\boxed{\text{L}}\]\[\boxed{\text{E}}\]
Locate the following zones given as boxed items in figure which shows a diagram of soil profile.
| Topsoil, Subsoil, C-horizon, Bedrock |
Match the animals in Column I with their natural place of dwelling (habitat) in Column II.
| Column I | Column II | ||
| (a) | Earthworm | (i) | Sand and beaches |
| (b) | Garden lizard | (ii) | Burrows in soil |
| (c) | Crab | (iii) | Deep, narrow holes in dry soils |
| (d) | Rodents | (iv) | Surface of soil |
| (e) | Scorpion | (v) | The surface of shaded moist soils |
| (f) | Snails and slugs | (vi) | A horizon of moist soils |
Gardeners gently dig up the soil around the roots of garden herbs (plants) frequently. Give reasons.
