Advertisements
Advertisements
Question
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Options
health and comfort of animals
rate of evaporation from plants and animals
growth of plants
all the above
Advertisements
Solution
all the above
APPEARS IN
RELATED QUESTIONS
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
State three uses of water vapour in the air.
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Fill in the blank
The supporter of combustion in air is _____.
Give a reason why water droplets appear on the outer surface of a tumbler containing ice.
List uses of oxygen.
______ is necessary for all acids.
Which of the following components of air is present in the largest amount in the atmosphere?
Observe the picture given in figure carefully and answer the following questions.

- What is covering the nose and mouth of the police man?
- Why is he putting a cover on his nose?
- Can you comment on air quality of the place shown in the figure?
