The essay is about fatigue cracks.Fatigue cracks are initiated at the free surface of metals, this occurs at the grains of the surface.

This essay is based on analyzing chemicals so as to comer up with the explanation that is scientific and evidence based.Dietary mineral refers to inorganic compounds necessary for life...

Carbon and its compounds are quite important and useful to the environment. Carbon dioxide is very useful for plants for the process of respiration. Presence of trees and vegetation...

Copper pollution of water systems has increased greatly in the recent years in many parts of the world because of increased industrial demand for copper, its heavy use in agrochemicals...