Q2 of 17 Page 93

Match the following

(i) natural resource — (e) water


reason: water is found in nature in abundance and is not synthesized synthetically by humans hence it is a natural product.


(ii) coal — (a) carbonization


reason: the process of conversion of dead vegetation into coal is called carbonization. In this way it is most appropriately related to coal


(iii) petrochemical product — (b) plastic chair


reason: petrochemicals are used in making plastics. So it is related closely to chair made of plastics


(iv) natural gas — (c) Krishna, Godavari delta


reason: Natural gas is found in India in this delta.


(v) petroleum — (d) plankton


reason : petroleum was formed by remnants of tiny organisms called plankton. Hence this is the answer that is most closely related with petroleum.


More from this chapter

All 17 →
1

Complete the given analogy

i. coal : exhaustible : : ________ : inexhaustible


ii. coal tar : _______ : : coke : manufacture of steel


iii. petrochemical : plastic : : CNG : __________


iv. carbon dioxide : global warming : : ________ : nausea

 3

Tick (√ ) the only correct choice among the following.

i. Which one of the following is less polluting fuel?


a. Natural gas b. coal


c. kerosene d. petrol


ii. The main constituent of coal is


a. Carbon. b. oxygen


c. air d. water


iii. Which one of the following material is used for making shoe polish?


a. Paraffin wax b. petrol.


c. diesel d. lubricating oil

 4

Fill in the blanks.

i. ___________ was used in manufacture of steel.


ii. The biproduct of coal used in synthetic dyes and paints is ____________.


iii. Coal was formed in areas where large amounts of ______________was buried under


the earth.


iv. __________gas which causes climate change and global warming.

 5

Name the petroleum products used for roads surfacing.