Advertisements
Advertisements
प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
विकल्प
is a slow process
is a natural and continuous process
takes place at body temperature
all of the above
Advertisements
उत्तर
all of the above
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
_____________ discovered the oxygen gas.
Describe a simple experiment with the help of a diagram to show that Air has mass
Describe a simple experiment with the help of a diagram to show that Air exerts pressure
Answer in your own words.
What are the various constituents of air? Write their uses.
Explain the term ‘air pollution’, with reference to air quality. State the sources of a few main pollutants.
Fill in the blank:
Rusting is a chemical reaction which involves _____ oxidation.
Mention two advantages of wind energy.
The layer of air around the earth is known as ______.
Air has no ______ & ______.
Explain the following observations very briefly
A firki does not rotate in a closed area.
