Advertisements
Advertisements
प्रश्न
Fill in the blank
Green plants need ________________to prepare food.
Advertisements
उत्तर
Green plants need CO2 water and light to prepare food.
APPEARS IN
संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
Write ‘true’ or ‘false for the following;
Carbon dioxide is given out during photosynthesis
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The mesosphere in the atmosphere, contains most of the air, fit for respiration
Compare respiration and combustion-both involving oxygen of the air.
Aerated water contains
List out the uses of nitrogen.
What was the old name of nitrogen?
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 aeroplanes.
Observe the picture given in figure carefully and answer the following questions.
- What is covering the nose and mouth of the police man?
- Why is he putting a cover on his nose?
- Can you comment on air quality of the place shown in the figure?
