EASY
Earn 100

The role of weedicides is to kill specific weeds.

50% studentsanswered this correctly

Important Questions on Improvement in Food Resources

HARD
Science>Biology>Improvement in Food Resources>Crop Protection Management
Disease resistant crop is obtained by
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Biotic are
(i) Insects (ii) Rodents (iii) Fungi (iv) Mites
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
The pesticides need to be replaced because these :-
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
The unwanted plants which grow with main crops are called
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Storage losses in agricultural produce can be very high.
Factors responsible for such losses are
(i) Biotic (ii) Abiotic (iii) Weeds (iv) Rodents
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management

Fill in the blanks by choosing the correct option from the following

I. Puccinia causes _____ disease in wheat.

II. Blast is a _____ disease of paddy.

III. Chemicals used to kill weeds are called _____.

IV. Pesticles are _____ chemicals.

EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Why do we have to protect crops from weeds?
HARD
Science>Biology>Improvement in Food Resources>Crop Protection Management
Malathion is used as :-
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
It is unwanted plants in the cultivated field, for example, Xanthium
MEDIUM
Science>Biology>Improvement in Food Resources>Crop Protection Management
Malathion, BHC, disyston and DDT are
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Weeds affect the crop plants by
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Diseases in plants are caused by
MEDIUM
Science>Biology>Improvement in Food Resources>Crop Protection Management
Biological methods of pest control involve _____.
MEDIUM
Science>Biology>Improvement in Food Resources>Crop Protection Management
The best time for weeding is before the weeds
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
DDT is
MEDIUM
Science>Biology>Improvement in Food Resources>Crop Protection Management
Which of the following is not a weed?
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Organisms that control insects and pests of plant crops is.
MEDIUM
Science>Biology>Improvement in Food Resources>Crop Protection Management
Storage gains produce aflatoxin due to growth of :-
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Which one of the following does not damage crops?
EASY
Science>Biology>Improvement in Food Resources>Crop Protection Management
Preventive and control measures adopted for the storage of grains include