General Science Questions

Methane is the main component of biogas and natural gas.

A Book always has Pages. Without pages it can't be called as a book. A book can be either with or without preface, text or index but it can't be without a page.

Hence, A Book always has page.

Endorphins are called pain controlling chemicals in the body.

Eugenics is the study of altering human beings by changing their genetic components.

It is the study of the agencies under social control that may improve or impair the racial qualities of future generations either physically or mentally.

The phalanges or a phalanx are/is digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones.

The study or scientific study of the structure, development, and abnormalities of the teeth is called Odontology. The science that studies teeth and their surrounding tissues, especially the prevention and cure of their diseases is called Dentology.
 

Area near active volcano or lake beds are best areas that lends itself to the formation of fossils.