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प्रश्न
Fill in the blank
Green plants need ________________to prepare food.
उत्तर
Green plants need CO2 water and light to prepare food.
APPEARS IN
संबंधित प्रश्न
Name the following:
The active component of air which supports combustion and is used up in burning
Name the following:
The component of air which is present more in industrial areas.
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
What is the presence of harmful substance in the air called?
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
Mountaineers carry oxygen cylinders with them because
Which of the following components of air is present in the largest amount in the atmosphere?
State whether the following statement is true or false. If false, correct them.
Plants consume oxygen for respiration.
State whether the following statement is true or false. If false, correct them.
Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and airplanes.
