• # question_answer Increased level of carbon dioxide in the atmosphere would impact the plants in many ways. These can be: 1. Decrease in photosynthetic productivity of plants. 2. Proliferation of weeds. 3. Increase in number of insects and other pests. Select the correct answer using the codes given below; A)  1 and 2 only B)  1 and 3 only C)  2 and 3 only     D)  1, 2 and 3

Solution :

[c] Increase in $C{{O}_{2}}$ will increase photosynthesis. This in mm produces more organic matter. It seems to only have a positive effect. But, Weeds may proliferate rapidly and that too at the expense of useful plants. Insects and other pests that feed on plants may also increase in number. Also, survival of other organisms gets affected.

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