Make sentences using the given set of words.(a) 99%, oxygen, nitrogen, air, together(b) Respiration, dissolved, animals, air aquatic(c) Air, wind, motion, called
(a) 99% of the air is made up of Oxygen and nitrogen together.
(b) Aquatic animals use dissolved air for respiration.
(c) The air in motion is called wind.
Related Articles (a) Explain how, nitrogen, oxygen, and argon gases are separated from air.(b) Draw a flow diagram of the processes involved in obtaining gases like nitrogen, oxygen, and argon from the air.
The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :(a) nitrogen, oxygen, argon (b) nitrogen, argon, oxygen(c) argon, oxygen, nitrogen (d) oxygen, argon, nitrogen
(a) What is meant by aquatic animals and terrestrial animals?(b) From where do the aquatic animals and terrestrial animals obtain oxygen for breathing and respiration ?
What is the percentage of nitrogen in air?
Describe balance of oxygen in the air.
Difference Between Air and Oxygen
Which of the following raw materials is available in the air for photosynthesis?(a) Oxygen(b) Carbon dioxide(c) Nitrogen(d) Hydrogen
(a) >What is air? Write the names of various constituents of air.(b) What is air pollution? What are the main sources of air pollution?
A list of words is given in a box. Use appropriate words to fill up the blanks in the following statements.[Air, oxygen, wind, water vapour, mixture, combination, direction, road, bottles, cylinders] (a) The ______ makes the windmill rotate.(b) Air is a ______ of some gases.(c) A weathercock shows the _____ in which the air is moving at that place.(d) Mountaineers carry oxygen ___ with them while climbing high mountains.
Which of the following cannot be separated from air by the process of fractional distillation ?(a) oxygen (b) argon (c) hydrogen (d) nitrogen
What is the percentage of oxygen in air?
What is the source of oxygen gas in air?
Name the major gas present in the (a) inhaled air(b) exhaled air.
How oxygen present in the air is replaced?
(a)Give the main points of difference between respiration in plants and respiration in animals.(b) Describe the exchange of gases which takes place in the leaves of a plant (a) during daytime, and (b) at night.(c) Which contains more carbon dioxide : exhaled air or inhaled air ? Why ?
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