Name the process by which the various gases of the air are separted.

(a) Name the process by which all the dye can be recovered from black ink. (b) Name the process by which the various 'days' (coloured materiais) present in black ink can be separted.

What is the percetage of CO_(2)" and "O_(2) in the air ? Name the hiological process by which these gases are mainly returned to the atmosphere.

Name the process by which air above the candle flame gets heated.

Name the process by which the constituents of a solution of salt and water can be separted

Name the process which is used in milk daires to separte cream from milk.

Name the process . Ore heated in the absence of air .