How many Indian plant species are used to extract essential oils and scents ?
50
500
50,000
5000
Additional Questions
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Orchid living on the tree is an example of …………..? |
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In ecosystem the source of energy is…. |
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Which type of relation is found in between richness of species and variety of phylum ? |
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What is the effect of air pollution on living organisms? |
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Particulate matter of which size causes greatest harm to human health? |
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From a single ear of corn, a farmer planted 200 kernels which produced 140 tall & 40 short plants. The genotypes of these off springs are most likely. |
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1: 1: 1: 1 ratio shows |
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Synthesis of nucleic acids always takes place in |
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Which of the following is an example of genetic variation? |
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Enzymes needed for formation of repliction fork |
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