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Botany MCQs for NEET — Practice Questions with Answers

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The biogas plants are found in

A. More in urban areas B. More in rural areas C. More in Delhi D. Cannot be estimated

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Explanation

NCERT page number 186

10.4 Microbes in Production of Biogas

Microbes In Human Welfare

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KVIC stands for

A. Khadi and village Institution commission B. Khadi and vallore institution commission C. Khadi and Village Industries commission D. Kanpur and Vallore industries Commission

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Explanation

NCERT page number 186

10.4 Microbes in Production of Biogas

Microbes In Human Welfare

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What is the key belief of organic farmers?

A. Biodiversity furthers health B. Health furthers biodiversity C. Health and biodiversity are the consequences of development D. Both B and C

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Explanation

NCERT page number 186

10.5 Microbes as Biocontrol Agent

Microbes In Human Welfare

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Biocontrol measures will greatly reduce our dependence

A. On toxic chemicals B. On pests C. On insects D. On Birds

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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Which of the following is not an important part of biological farming approach?

A. To know all the life forms that inhabit the field B. Predators and pests are also analysed C. The life cycles, patterns of feeding and habitats of all the life forms of that field D. To know the abundance of each of the life forms

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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Which of the following is the major concern of Organic farmers?

A. Chemical methods lead to death of harmful life forms discriminately B. Eradication of pest is undesirable as it may lead to death of beneficial predatory and parasitic insects C. Conventional farming D. Biocontrol measures will increase the dependence on toxic chemicals.

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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The Bacterium Bacillus thuringiensis is used to

A. Control aphids B. Control aphid larva C. To control butterfly D. To control butterfly caterpillars

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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Which of the following is not true about Trichoderma?

A. Common in the root ecosystem B. Free living fungi C. Effective Biocontrol Agents of several plant pathogens D. Bt-cotton is prepared by it

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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Which of the following option is not true for Baculoviruses?

A. Pathogens that attack insects and the Arthropods B. Biological control agents C. Genus- Nucleopolyhedrovirus D. Species-specific and broad spectrum insecticidal applications

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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Baculoviruses have no negative effect over

A. Plants, fish B. Mammals C. Birds, non-target insects D. All of these

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Explanation

NCERT page number 187

10.5 Microbes As Biocontrol Agents

Microbes In Human Welfare

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