Which of the following statements is/are correct or incorrect?
Statements:
A) The rotation of Earth is responsible for wind blowing.
B) A fuel would be regarded as environment friendly if its combustion products were non poisonous.
C) Coal is a complex mixture of compounds of 0,H? and half free carbon. A small amount of Nitrogen and Sulphur compounds are also present in coal.

a.Wind is caused by differences in the atmospheric pressure , not by the rotation of earth.

b.A fuel would be regarded as environment friendly if its combustion products were non poisonous. - It is a correct statement.

c.Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen.

So , the answer would be option c)Only statement B is correct, statement A and C are incorrect.