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Class 8
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Study how Insect pests spoil Food Grains
Study how Insect pests spoil Food Grains
Theory
Theory
Procedure
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1)
The deterioration or damage of grain is commonly known as
Grain transportation
Grain spoilage
Grain drying
Grain harvest
2)
Neem leaves are generally used for
Avoiding bad smell in the stored grains
Giving some bitter taste to the grains
Long-time storage of grains in home
Observing water drops in grains
3)
What are silos and granaries?
Metallic bins for storage
Wayside storage bins
Use of neem leaves to protect grains
Large scale godowns for storage of grains
4)
In the case of losses of quality, the losses occurs mainly
Change in smell and colour
Change in colour
Change in climate
Change in smell
5)
The grains are properly dried in the sun light to prevent
Spoilage by air
Spoilage by insect pests and organisms
Spoilage by water
Spoilage by bags
6)
Which is a primary store grain pest?
Red flour beetle
Rice moth
Rice weevil
None of these
7)
Another name of Wheat weevil is
Granary weevil
Rice moth
Rice weevil
Khapra beetle
8)
Grain loss is a measurable decrease in total grain yield that can affect both
Smell and colour
Size and colour
Nutrients and size
Quality and quantity
9)
Post-harvest spoilage may occur
During storage
During transportation
During harvesting
All of these
10)
Weevils play the key role in
Transportation
Storage
Drying
Spoilage