Tag: environmental protection
Questions Related to environmental protection
What causes the inactive form of Bt toxin i.e. protoxin to get converted into its active form in the body of an insect?
Which of the following is not used as a biopesticide?
Biopesticides are:
Given below is the list of few chemicals that are used for protection of crops
i) dalapon
How many of these are used as insecticides?
A biological control which is effective biocontrol agent for several plant pathogens :
Which of the following pairs is wrongly matched?
Refer to the given dichotomous key and select the correct option.
I. (a) Fibre obtained from natural sources - Go to II
(b) Fibre obtained from chemical, - K
II. (a) It is a cellulosic fibre - Go to III
(b) It is a protein fibre. - Go to IV
III. (a) It is obtained from leaves. - L
(b) It is obtained from seeds.
IV. (a) It is obtained from mammals. - N
(b) It is obtained from an insect. - O
Which is useful as biological control ?
Third generation pesticides are
Natural insecticides are obtained mostly from microbes.