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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
पर्याय
is a slow process
is a natural and continuous process
takes place at body temperature
all of the above
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उत्तर
all of the above
APPEARS IN
संबंधित प्रश्न
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
Give two uses of the following component present in air:
carbon dioxide
Give two uses of the following component present in air:
water vapour
Tick (√) the correct alternative from the choice given for the following statement.
Air consists of
Tick (√) the correct alternative from the choice given for the following statement.
Air pollution is due to the
Tick (√) the correct alternative from the choice given for the following statement.
Which of the following is not a greenhouse gas?
Tick (√) the correct alternative from the choice given for the following statement.
The substance which accelerates the speed of a reaction without itself undergoing any change is called
State what do you understand by the term ‘air’. Explain its importance to mankind.
State whether the following statement is true or false.
The pressure exerted by air is called atmospheric pressure.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
