Advertisements
Advertisements
Question
Fill in the blank
Green plants need ________________to prepare food.
Advertisements
Solution
Green plants need CO2 water and light to prepare food.
APPEARS IN
RELATED QUESTIONS
State three uses of water vapour in the air.
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Solution of carbon dioxide in water is called _________ acid.
What is the source of oxygen gas in air?
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
Inhaled air contains a large amount of carbon-di-oxide.
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
All living things use oxygen for breathing.
When air is moving with cool and soothing, it is called a cyclone.
Carbon dioxide gas is ______.
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?
