Advertisements
Advertisements
प्रश्न
Gardeners gently dig up the soil around the roots of garden herbs (plants) frequently. Give reasons.
उत्तर
Gardeners gently dig up the soil around the roots of garden herbs frequently. This is done
- for enabling easy root growth
- for easier percolation of water
- for aerating the soil and enabling air to get into deeper layers of soil
- for removing the weeds.
APPEARS IN
संबंधित प्रश्न
Explain how soil is formed.
Give geographical reason:
Soil is a very important resource.
What are the components of topsoil?
Name the various methods of conserving soil.
The photograph shows a framing method that helps in controlling soil erosion.
- What is this farming method called
- Mention any two other methods that help in controlling soil erosion.
Read the following statements with reference to the soil.
(i) Weathering is a very fast process of soil formation.
(ii) Percolation of water is faster in sandy soils.
(iii) Loamy soil contains only sand and clay.
(iv) Topsoil contains the maximum amount of humus.
Choose the correct statements from the above.
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 9.1 which shows a diagram of the soil profile.
Topsoil, Subsoil, C-horizon, Bedrock
Rajasthan is a desert state in India. Once while travelling to Rajasthan by train, Boojho observed several streams and rivulets of rainwater during the journey but to his surprise, he did not see streams of water in the desert region even during rains. Help Boojho find a suitable explanation for this.
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 |
