Q9 of 10 Page 105

Explain how soil pollution and soil erosion could be prevented.

Soil pollution can be prevented by


•Avoid dumping of non-biodegradable wastes in the soil.


•Use of natural pesticides


•Recycling of waste should be done


•Avoid excessive use of pesticides and insecticides


Soil erosion can be done by


•Avoiding overgrazing of grassland


•Preventing cutting of trees


•Using step farming in hilly regions


•Afforestation


More from this chapter

All 10 →
6

List the differences between clayey soil and sandy soil.

 7

Sketch the cross section of soil and label the various layers.

 8

Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200mL of water to percolate through the soil sample. Calculate the rate of percolation.

 10

Solve the following crossword puzzle with the clues given:


Across


2. Plantation prevents it.


5.Use should be banned to avoid soil pollution.


6.Type of soil used for making pottery.


7.Living organism in the soil.


Down


1. In dessert, soil erosion occurs through.


3. Clay and loam are suitable for cereals like.


4. This type of soil can hold very little water.


5. Collective name for layers of soil.