To define mental health is a little difficult since it is subjective and cannot be measured accurately. Perhaps the presence of any mental illness is an easy method of knowing that one is not mentally healthy. However, even in the absence of any illness, the level of mental health can be higher in one person [...]

Mars is the planet after Earth from the Sun, which makes it the fourth. Popularly known as the Red planet because of the presence of iron oxide on its surface, it can be viewed by the naked eye on some nights. Huge craters have dented its surface. Although there has been no evidence of life [...]

Marine biology is a comprehensive study of micro organisms and living things in sea or brakish water. There are hundred types of marine animals and other kind of micro organisms that only exist in sea. Marine biology categorizes different animals and water species. It focuses upon marine ecology and its deep impact on environment. Marine [...]