The substance W is a fossil fuel. It occurs deep below the ground in certain areas of earth. Another fossil fuel X is found trapped above the deposits of W. when W is subjected to the process Y, then a number of 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 airplanes. a) What are W and X? c) Define the process Y? b) Name two uses of X

The substance W is a fossil fuel. It occurs deep below the ground in c

1.	The substance W is a fossil fuel. It occurs deep below the ground in certain areas of earth. Another fossil fuel X is found trapped above the deposits of W. when W is subjected to the process Y, then a number of 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 airplanes. a) What are W and X? c) Define the process Y? b) Name two uses of X
Answer» They occur in all three states of matter. Coal is in SOLID form, NATURAL gas is a gas, and crude oil is in LIQUID state. Generally, fossil fuels are non-renewable SOURCES which mean that their RESERVES can be depleted from the earth's surface.