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प्रश्न
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
विकल्प
True
False
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उत्तर
True.
संबंधित प्रश्न
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
The diagrams below represents an experiment to show the presence of a component of air.
- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air used in photosynthesis is ______ and the products of photosynthesis is oxygen.
Name the following:
The product of respiration released in exhaled air, other than carbon dioxide.
Give word equation for the following conversion:
Nitrogen of the air to nitric oxide
Compare respiration and combustion-both involving oxygen of the air.
What is the source of oxygen gas in air?
_______ can be seen moving in a beam of sunlight in a dark room.
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
