Worksheet: Air Around Us. | Eureka Plus Class 6: Book Solutions, Notes & Worksheets PDF Download

Q1: Multiple Choice Questions (MCQs)

(i) What is the main component of the Earth's atmosphere?
(a) Oxygen
(b) Nitrogen
(c) Carbon Dioxide
(d) Argon

(ii) What is the primary reason for a lighted candle covered with a glass tumbler going out?
(a) Lack of heat
(b) Lack of fuel
(c) Lack of oxygen
(d) Lack of wax

(iii) Which process converts atmospheric nitrogen into nitrates that plants can use?
(a) Respiration
(b) Combustion
(c) Nitrogen Fixation
(d) Photosynthesis

(iv) What role does the ozone layer play in the Earth's atmosphere?
(a) It absorbs harmful UV rays
(b) It produces oxygen
(c) It regulates temperature
(d) It creates wind energy

(v) Which gas is released by animals during respiration?
(a) Oxygen
(b) Carbon Dioxide
(c) Nitrogen
(d) Argon

Q2: Fill in the Blanks

(i) Air contains _________ gases, including nitrogen, oxygen, carbon dioxide, and water vapor.
(ii) Plants make oxygen through the process of ________________.
(iii) The layer of __________ gas in the upper atmosphere prevents harmful UV rays from entering the Earth's atmosphere.
(iv) Water vapor causes weather conditions such as ____________, ____________, and ____________.
(v) Wind is a source of energy used in __________ to draw water, grind flour, and generate electricity.

Q3: Match the Column

Match the terms in Column A with their corresponding descriptions in Column B.

Q4: True or False

(i) Clean air is visible and has a distinct smell.
(ii) The atmosphere extends up to about 100 km above the Earth's surface.
(ii) Combustion is the process of burning, which involves using nitrogen.
(iii) Water vapor in the air can cause rain, but it does not play a role in forming clouds.
(iv) All animals can use nitrogen directly from the air for their growth.

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