Nature is the gift of human race. Protecting it is our job. Studying about the structure, minerals constitution of the earth is the geology. They examine the structure, composition, features, changes causes and the reason for it. They examine the safe usage of the land and they observe the fossils of the organisms inhabited in our planet. Geologist find out the dangerous situations going to arise to the globe like volcanic eruptions, earth quakes and soon. They analyze the future causes by mapping out the present damages and causes. They play a major role in every thing and there work is very precious for every one in one or the other time. They conduct tests to the soil sample and illustrate its usages and causes. They work under waters, rocks, gas fields and soon.