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प्रश्न
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
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उत्तर
| Things which give out oxygen | Things which give out carbon dioxide |
| Brinjal plant | bog |
| Papaya plant | Cat |
| Coconut tree | Monkey |
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संबंधित प्रश्न
Name and briefly explain four ways by which pollution of air is caused by humans.
Complete and balance the following equation
CaO + H2O →
How do astronauts breathe when they go beyond the earth’s atmosphere?
How will you show that air is dissolved in water?
The Scottish chemist ______ discovered carbon dioxide is present in air.
Explain carbon dioxide and its uses.
Tri oxygen molecule is known as ______.
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
On a Sunday morning Paheli’s friend visited her home. She wanted to see some flowering plants in the nearby garden. Both of them went to the garden. While returning from the garden they also observed some flowering plants on the road side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?
