Advertisements
Advertisements
प्रश्न
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
उत्तर
APPEARS IN
संबंधित प्रश्न
Discuss harmful effects of greenhouse effect.
Define the following:
Respiration
Fill in the blank
Polluted air is harmful to ____.
Describe a simple experiment with the help of a diagram to show that Air exerts pressure
Describe a simple experiment with the help of a diagram to show that Air is highly compressible
A mixture has a variable composition. Give three other reasons why air is considered a mixture and not a compound.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
Match the following:
| 1. | Layer of air | a. | Hand fan |
| 2. | Electrical energy | b. | 21% |
| 3. | Nitrogen | c. | Windmill |
| 4. | Oxygen | d. | Atmosphere |
| 5. | Palm Trees | e. | 78% |
Do sailors need the help of wind to sail?
Wind does not help in the movement of which of the following?
