Question 7 :
Boojho heard from his neighbour that 8–10 days after the rain, the level of water in a pond or well rises. Which type of soil will allow water to reach a well faster and in greater amount?
Question 9 :
The removal of land surface by water, wind or ice is known as __________.
Question 10 :
Some important climatic factors which affect the soil profile and bring changes in the soil structure are-
Question 11 :
Which soil is the most suitable to grow lentin (masoor) and other pulses?
Question 19 :
Use of which substance should be banned to avoid soil pollution?
Question 28 :
Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200 mL of water to percolate through the soil sample.What is the rate of percolation?
Question 32 :
State true or false: Upper layer of the soil is dark in colour.
Question 33 :
State true or false: Earthworm are the living organism in the soil.
Question 35 :
State true or false: Clayey soil holds good amount of water while sandy soil ability to hold water is not good.
Question 36 :
State true or false: Clayey soil contains small particles which are tightly packed.
Question 37 :
State true or false: Middle layer of the soil has lesser amount of humus.
Question 38 :
State true or false: Polythene use should be banned to avoid soil pollution.
Question 39 :
State true or false: Clayey soil is light in weight while sandy soil is heavy in weight.
Question 40 :
State true or false: All kinds of soil are the home for living organisms
Question 42 :
State true or false: Clayey soil is rich in humus while sandy soil is not rich in humus.
Question 44 :
State true or false: Clayey soil particles are packed tightly while sandy soil particles are loosely packed.
Question 46 :
State true or false: Clay and loam are suitable for cereals like wheat.
Question 48 :
Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200 mL of water to percolate through the soil sample. What is the rate of percolation?
Question 49 :
State true or false: Soil profile is the collective name for layers of soil.