Crop Production and Management - Class VIII, NCERT Science - Solutions of CBSE Hot Questions

 

CBSE Class VIII - Chapter 1, NCERT Science

Crop Production and Management


  Solutions of CBSE Hot Questions (Short type)

Question.1: Why does every living organism need food?
Question.2: Where do we get our food from?
Question.3: What is crop?
Question.4: Name the factors controlling crop production.
Question.5: Based on factors required to grow plants, how many crop seasons are observed in India?
Question.6: What are crumbs?
Question.7: Which agricultural tools are used for tilling?
Question.8: Who supplies mineral nutrients to plants?
Question.9: Which manure is called Organic manure?
Question.10: Name any two important fertilizers.
Question.11: What is a fallow?
Question.12: Which bacteria are present in the legumes of leguminous plants?
Question.13: What is harvesting?
Question.14: How does reduction in moisture of newly harvested grains help in storage?
Question.15: Name the places where grains are stored at large scale.
Question.16: Write the names of various agricultural practices undertaken to produce a crop.
Question.17: Why is the soil turned and loosened before seeds are sown?
Question.18: What is the role of water in production of crops?
Question.19: What are the different methods of irrigation?
Question.20: What is humus? How is it formed?   
Question.21: Why does a farmer rotate crops in the field? (Crop-rotation)
Question.22: What safety measures are to be taken in handling pesticides and weedicides?      
Question.23: Distinguish between pesticides and weedicides.
Question.24: Why should the harvested grains is protected from moisture?

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Solutions of CBSE Hot Questions (Long type)

Question.1: Write a paragraph on the various methods used to replenish the nutrients in the fields.
Question.2: Write a short note on Threshing & Winnowing.

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Solutions of CBSE Questions (Objective type / Multiple Choice / True-False)

Question.1: Fill in the blanks:
a.         ____ is used for sowing of seeds.
b.         Loosening the soil is also called _____.
c.          ____ is the second agricultural practice.
d.         _____ and ____ are used to add nutrients in the soil.
e.         Manures are the ___ substances.
f.          ____ is a weedicides.
g.         ____ is the economical method of irrigation.
h.         Leaving field uncultivated is called ______.
i.           _____ is used to separate seed from the chaff.
j.          Crops sown in the rainy season are called ______.
Solution: a. seed drill, b. tilling, c. sowing, d. manures and fertilizers, e. organic, f. metachlor, g. drip irrigation, h. fallow, i. thresher, j. rabi crops.
Question.2: Write ‘True/False’ for the following statements:
a.         Many plants are first grown in kindergartens and then sown in fields.
b.         Seeds can only be sown by using seed drills.
c.          Earth worms are farmer friendly.
d.         Substances that kill pests are called weedicides.
e.         Cutting and gathering of mature crops is called harvesting.
f.   Process of beating grains to separate them crop plants is called winnowing.
g.         Excess use of fertilization is not good for crops & soil.
h.         Animals which provide us with eggs and flesh are called milch animals.
Solution: a-false, b-false, c-true, d-false, e-true, f-false, g-true, h-false

Further study - 
Class 8, Crop Production and Management - Chapter 1, Science - NCERT Answers of Textbook Exercise [Read

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