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प्रश्न
What are the components of topsoil?
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उत्तर
The topmost layer is the topsoil (Layer D) which consists of clay, silt, sand and humus.
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संबंधित प्रश्न
Sketch the cross section of soil and label the various layers.
What is meant by the terms ‘soil erosion’ and ‘soil conservation’?
Explain any two methods of soil conservation briefly.
Form pairs or groups of three or four students and discuss, with examples, how we depend directly and indirectly on soil.
Unscramble the following jumbled word related to soil.
\[\boxed{\text{I}}\]\[\boxed{\text{L}}\]\[\boxed{\text{O}}\]\[\boxed{\text{S}}\] \[\boxed{\text{F}}\]\[\boxed{\text{I}}\]\[\boxed{\text{P}}\]\[\boxed{\text{R}}\]\[\boxed{\text{O}}\]\[\boxed{\text{L}}\]\[\boxed{\text{E}}\]
Unscramble the following jumbled word related to soil.
\[\boxed{\text{M}}\]\[\boxed{\text{O}}\]\[\boxed{\text{A}}\]\[\boxed{\text{L}}\]
A man digging a pit found that he could dig with ease initially but digging became difficult as he went deeper. He could not dig beyond a depth of 5 feet. Provide a suitable scientific explanation.
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 |
Several terms related to soil are hidden in the squares given in figure. Spot them and make a list. Two examples are given for you.
