The difference in height of different physical features of the Earth is called ______.
A phenomenon in which an element exists in different modifications in the same physical state is called-
The substance W is a fossil fuel. It occurs deep below the ground in certain areas of the earth. Another fossil fuel X is found trapped above the deposits of W. When W is subjected to a process called Y, then a number of different products are collected at different temperature ranges which are put to different uses. A special grade of product Z obtained in this way is used as aviation fuel in jet aeroplanes.
(a) What are (i) W, and (ii) X ?
(b) What is the physical state of (i) W, and (ii) X ?
(c) Name the process Y.
(d) Name the product Z.
Fill in the following blanks that describe the various features that made Cutie Pie and his world different from the earth and earthlings:
1. Physical appearance:
2. Ch tsal’s planet:
Sun/moon ________________________________________________________
Food habits _______________________________________________________
Cities_____________________________________________________________
Enemies___________________________________________________________
Other features _____________________________________________________