Upasana Bista

Carbon and Mineral Oil

The fuels which are formed in nature by the decomposition and preservation of organic matter under high temperature and pressure for a long period of time are called fossil fuels.Coal, oil and natu...

Geological Time scale

The organisms we see today come from a huge chain of evolution. When Earth first evolved, there was no favorable environment for the evolution of organisms on Earth. After continuous change in clim...

Earth's formation-Hypothesis

An early theory of supposition which is formed on the basis of scientific ideas and reasoning but might lack experimental proof is called hypothesis. It's very difficult to exactly say when the Ear...

Fossils

A fossil is the mark or impressions or hardened remains of dead body of a plant or an animal remained buried in the Earth's crust over a long period of time. Generally, fossils are present in sedim...