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प्रश्न
Fill in the blank
Green plants need ________________to prepare food.
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उत्तर
Green plants need CO2 water and light to prepare food.
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संबंधित प्रश्न
What do you understand by the term polluted air?
What do you observe when Ice cold water is filled in a glass tumbler.
Air is made up of oxygen only.
List out the uses of carbon dioxide.
Inhaled air contains a large amount of carbon-di-oxide.
Nitrogen is _______ than air.
Carbon dioxide gas is ______.
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
