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