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Question
Which of the following statements is/are correct?
- All green plants can prepare their own food.
- Most animals are autotrophs.
- Carbon dioxide is not required for photosynthesis.
- Oxygen is liberated during photosynthesis.
Choose the correct answer from the options below:
Options
(i) and (iv)
(ii) only
(ii) and (iii)
(i) and (ii)
Solution
(i) and (iv)
Explanation:
Animals cannot manufacture their own food so they are heterotrophs, not autotrophs.
Carbon dioxide is a raw material for photosynthesis. In the process of photosynthesis, plants manufacture organic compounds, inside the chlorophyll-containing cells from carbon dioxide and water with the help of solar energy. So, Co2 is essential for photosynthesis.
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