Distinguish the following as planet,satellite,constellation,asteroids.

A man suffering from anaemia feels tired after a short work. Explain. 1

What is mineral oil? 1

How do we determine the age of fossil? 1

Which one of the following is not a fossil fuel? 1

What is the worst quality of coal? 1

Which one of the following is not the evidence of evolution? 1

Which elements are found in coal? 1

What is called for the study of fossil? 1

Which era are important for the development of life? 1

In how many groups, geologists divided the history of earth. 1