Questions and Answers
Class 8, Chapter 1 - Crop Production and Management | NCERT
1.
Which of those are rabi crops?
gram, pea, mustard, wheat
2.
Which are winter crops?
Rabi
3.
Put in order steps of plant production cycle.
preparation of soilsowingadding manures and fertilizersirrigationweedingharvestingthreshingstorage
4.
Exposing inner layers of soil to air is called:
ploughing
5.
What is tilling?
leveling soil surface
6.
Seed drill and funnel are used for:
sowing
Which statements are true?
7.
Manure is natural and organic substance.
True
8.
There are only synthetic fertilizers.
False
9.
Fertilizers are substances providing only praticular nutrients.
True
10.
Which of those are traditional irigation methods?
Moat, Chain pump, Dhekli, Rahat
11.
Crop rotation is a method used for:
replenish soil nutrition
12.
How do we call undesirable plants that grow around crops?
weeds
13.
Which fertilization method is considered better?
Manure
Which statements are correct?
14.
Manure is relatively less rich in plant nutrients.
True
15.
Fertiliser is made in process of decomposition of plants and cattle dung.
False
16.
Most expensive and most efficient irrigation method is a drip system.
True
17.
What is the best time to remove weeds from field?
before they produce flowers and seeds
18.
How do we call chemicals used to get rid of weeds?
weedicides
Which statements are correct?
19.
Chemicals used to get rid of weeds may be harmful for person spraying them over the field.
True
20.
Grains can be stored in granaries or siloses.
True
21.
Kharif Crops in India are grown from June to September.
True
22.
Damaged seeds do not float on the water.
False
23.
Pulses and vegetables are grown during winter season.
False
24.
Process of separating seeds from the chaff is called:
threshing