|
What useful changes are caused by earthquakes?
|
|
0
|
2080
|
September 16, 2017
|
|
How does a plough work?
|
|
0
|
1832
|
September 16, 2017
|
|
What are weak zones?
|
|
0
|
1094
|
September 16, 2017
|
|
What are the advantages of organic manure?
|
|
0
|
765
|
September 16, 2017
|
|
Apart from disturbance inside the earth, what are the other reasons of earthquake?
|
|
0
|
1229
|
September 16, 2017
|
|
Explain the method used these days to sow seeds
|
|
0
|
1322
|
September 16, 2017
|
|
Explain why a charged balloon is repelled by another charged balloon
|
|
0
|
1095
|
September 16, 2017
|
|
Suggest three measures to protect ourselves from lightning
|
|
0
|
9087
|
September 16, 2017
|
|
List the steps involved in crop production in a flow chart
|
|
0
|
7657
|
September 16, 2017
|
|
Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph ? Is it likely to cause much damage?
|
|
0
|
1429
|
September 16, 2017
|
|
Arrange the following boxes in proper order to make a flow chart of sugarcane crop production
|
|
0
|
9020
|
September 16, 2017
|
|
Differentiate between manure and fertiliser
|
|
0
|
5688
|
September 16, 2017
|
|
Why does farmer rotate crops in the field?
|
|
0
|
1649
|
September 16, 2017
|
|
Why should excessive supply of water be avoided ? ;What are weeds?
|
|
0
|
1419
|
September 16, 2017
|
|
What will happen if field is not ploughed before sowing the seeds ? Give any two disadvantages ;How are perishable food items stored on a commercial scale?
|
|
0
|
3879
|
September 16, 2017
|
|
(a) What are the two ways of sowing the seeds ? (b) Give any three advantages of ploughing
|
|
0
|
703
|
September 16, 2017
|
|
Explain the manual method of removing weeds
|
|
0
|
1940
|
September 16, 2017
|
|
Give the advantages of using the drip system of irrigation
|
|
0
|
892
|
September 16, 2017
|
|
What are the advantages of sprinkler system of irrigation?
|
|
0
|
1264
|
September 16, 2017
|
|
Give three reasons. Why water is important for plants?
|
|
0
|
1948
|
September 16, 2017
|
|
How is organic manure obtained?
|
|
0
|
1953
|
September 16, 2017
|
|
Name the three tools used for ploughing and give the function of each
|
|
0
|
7487
|
September 16, 2017
|
|
What are the three steps involved in the preparation of soil?
|
|
0
|
9577
|
September 16, 2017
|
|
Give three reasons, why soil should be turned and loosened?
|
|
0
|
3034
|
September 16, 2017
|
|
Name three natural methods of replenishing the nutrients of the soil. Are these natural methods sufficient to maintain the fertility of the soil?
|
|
0
|
19484
|
September 16, 2017
|
|
What is irrigation ? Describe two methods of irrigation which conserve water
|
|
0
|
7726
|
September 16, 2017
|
|
Earthworms are nature’s ploughmen. How ? How is soil a resource for all living organisms ? Give any two points
|
|
0
|
1277
|
September 16, 2017
|
|
A) Define crop. (b) Name two categories of crops based on season.(c)What are pesticides?
|
|
0
|
658
|
September 16, 2017
|
|
Mention two important uses of tilling the soil
|
|
0
|
1601
|
September 16, 2017
|
|
What is harvesting?
|
|
0
|
1110
|
September 16, 2017
|