Which of the following is called the laughing gas?

Recombinant DNA technology (Genetic Engineering) allows genes to be transferred
1. across different species of plants 
2. from animals to plants 
3. from microorganisms to higher organisms 
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Consider the following animals:
1. Sea cow
2. Sea horse
3. Sea lion
Which of the above is/are mammal/mammals?

With reference to the usefulness of the by-products of sugar industry, which of the following statements is / are correct?
1. Bagasse can be used as biomass fuel for the generation of energy.
2. Molasses can be used as one of the feedstocks for the production of synthetic chemical fertilizers.
3. Molasses can be used for the production of ethanol.
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Variations in the length of daytime and nighttime from season to season are due to

In the grasslands, trees do not replace the grasses as a part of an ecological succession because of

Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?

Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins are produced by

Consider the following organisms
1. Agaricus
2. Nostoc
3. Spirogyra

Which of the above is / are used as biofertilizer / biofertilizers

Which of the following adds / add nitrogen to the soil?
1. Excretion of urea by animals
2. Burning of coal by man
3. Death of vegetation

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Which of the following diseases can be transmitted from one person to another through tattooing?

1. Chikungunya 
2. Hepatitis B 
3. HIV-AIDS

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Which of the following statements is/are applicable to Jain doctrine?

1. The surest way of annihilating Karma is to practice penance.
2. Every object, even the smallest particle has a soul.
3. Karma is the bane of the soul and must be ended. 

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Photochemical smog is a resultant of the reaction among

Consider the following minerals
1. Calcium
2. Iron
3. Sodium

Which of the minerals given above is/are required by human body for the contraction of muscles?

With reference to the food chains in ecosystems, which of the following kinds of organism is / are known as decomposer organism/organisms?
1. Virus
2. Fungi
3. Bacteria

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