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प्रश्न
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
उत्तर
Photosynthesis: Carbon – dioxide :: Respiration: Oxygen
APPEARS IN
संबंधित प्रश्न
Tick (√) the most appropriate answer.
A gas which dilutes the activity of oxygen in air is:
What is the significance of water vapour in air?
Fill in the blank
Green plants need ________________to prepare food.
Match the statements in List 1 with the correct answers in List 2
| List 1 | List 2 | ||
| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
| 3 | The inert component in the air slightly soluble in water | C | Rare gases |
| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
| 6 | The component of air which finds application in observation balloons | F | Carbon dioxide |
| 7 | The process which involves oxidation of substances, liberating heat and light energy | G | Combustion |
| 8 | The component of air which is heavier than air and fairly soluble in water | H | Nitrogen |
| 9 | The process by which atmospheric carbon dioxide is absorbed by plants resulting in the formation of carbohydrates | I | Photosynthesis |
| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
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
Aerated water contains
What was the old name of nitrogen?
The second major component of air is oxygen.
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
Explain the following observations very briefly
An empty glass in fact is not empty.
