Q.1 What is the major activity for improving crop yield. *
Crop variety improvement
Crop production improvement
Crop protection improvement
All of these
Q.2 Irrigation systems adopted for agriculture are *
Wells
Rivers
Canals
All of these
Q.3 Organic farming is a system with minimum use of *
Chemicals fertilizers
bio agents
organic manure
biofertilizer
Q.4 Biotic factor responsible for losses in storage of grains is
Temperature
Insects and fungi
Humidity
light
Q.5 Chemical used to control pest is known as
pesticides
insecticides
weedicides
manure
Q.6 Major sources of human food is *
Plants
Animals
Only plants
Both a & b
Q.7 In vermicompost which organism is used *
Snail
Earthworm
Frog
Rat
Other:
Q.8 Manure is prepared from *
Plant waste
Animal excreta
Plastic bags
Both A & B
Q.9 The elements used by plants in large quantities are known as *
Micronutrient
Macronutrient
Less nutrient
Both A & B
Q.10 Objectives for which improvement of crop varieties is done *
Higher yield
Better quality
Biotic and abiotic resistance
All of the above
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