Question

21. Match the following words in column A with those in column B:

Column 1	Column 2
Clothing	toothpaste,cosmetics
Green revolution	nylon, wool
Building materials	agriculture
Commodities of daily use	mortar, cement

Answer 1

(A) Clothing - (ii) nylon, wool

• Clothing is made from wool and nylon fibres. Wool is obtained from sheep and is used in woollen clothing such as sweaters and socks.
• Nylon is a synthetic fibre made in factories and used to make raincoats, clothing, and other items.

(B) Green revolution - (iii) agriculture

• The Green Revolution was an era in India's history that began in the 1960s, during which high yielding variety (HYV) seeds, mechanised farm tools, irrigation systems, pesticides, and fertilisers were used to transform agriculture into a modern industrial system.
• It was the emergence of new varieties of crops, specifically wheat and rice varieties

(C) Building materials - (iv) mortar, cement

• Mortar is a paste formed of cement that is used to bind and fill gaps in building materials such as bricks.
• The basic material for all constructions is cement, which is a powder used for binding.

(D) Commodities of daily use - (i) toothpaste,cosmetics

Toothpaste and cosmetics are goods that we use on a regular basis, such as brushing our teeth or applying cosmetics to beautify our appearance.

Column I	Column II
(A) Clothing	(ii) nylon, wool
(B) Green revolution	(iii) agriculture
(C) Building materials	(iv) mortar, cement
(D) Commodities of daily use	(i) toothpaste,cosmetics