Advertisements
Advertisements
Question
Give reason:
Mountaineers and divers carry oxygen cylinders with them.
Advertisements
Solution
For artificial respiration mountaineers carry oxygen cylinders as at high altitudes, the air is thin and breathing becomes difficult. Also divers carry oxygen cylinder for artificial respiration as there is less oxygen dissolved in water (less dense) and breathing becomes difficult.
APPEARS IN
RELATED QUESTIONS
Define the term Global warming.
Define the term smog.
Briefly state the importance of Carbon dioxide.
Give two examples of modern fuels.
Give the chemical name of rust.
Explain why during an incident of fire, one is advised to wrap a woollen blanket over a burning object.
Write the percentage of the gases present in air.
_______ can be seen moving in a beam of sunlight in a dark room.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
