air_we_breathe_class_4

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d. We exhale iv. Fast, sudden and strong wind. e. Air mostly contains v. Oxygen

iii. Slow wind in coastal areas

c. We breathe

ii. Carbon dioxide

i. Nitrogen

b. Gust

a. Breeze

3. Match the following:

a. Air is limited. (__________) ___________________________________________________. b. Industries and factories should be shifted near the residential areas. (____) ___________________________________________________. c. Our surroundings should be clean. (_______) ___________________________________________________.

2. Declare whether the statement is True or False and if it is False, correct it.

a. All humans need air to ___________. (eat/ sleep/ breathe) b. The quantity of water vapour in the air is referred to as ____________ humidity. (absolute/ partial/ complete) c. Slow air movement in coastal areas is called ____________. (wind/ breeze/air) d. Breathing becomes ________ as we go up. (easy/ difficult)

1. Fill in the blanks with the options present in the bracket.

AIR WE BREATHE

CLASS 4 Subject - EVS Chapter - Air we breathe