WHAT IS POLLUTION Pollution is the contamination of harmful substance to the environment. It is the introduction of contaminant into the natural environment that causes adverse change. Pollution can take a form of chemical substances or energy, such as noise, heat or light. The components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or non point source pollution. FORMS OF POLLUTIONS Air pollution:-...
The heart is a muscular organ that pumps blood to the body. The heart is at the centre of the circulatory system. This system consists of a network of blood vessels, such as arteries, veins, and capillaries. These blood vessels carry blood to and from all areas of the body. OUTLINES 1.INTRODUCTION 2.THE HEART 2.1 ANATOMY OF THE HEART 2.2 CHAMBERS OF THE HEART 2.3 THE RIGHT SIDE OF THE HEART 2.4 THE LEFT SIDE OF THE HEART 2.5 THE SEPTUM OF THE HEART 2.6 THE HEART VALVES 3. CARDIAC SURGERY 3.1...
INTRODUCTION 1.1GENERAL BACKGROUND OF THE SUBJECT MATTER In our society, the state of the environment influences the inhabitants because environment is one of the key determinants of the optimal health or well being. It includes the living and non living things that man have to interact with and which can influence his state of health. A characteristics which has set man apart from other species has ability to control many aspect of his environment throughout recorded history, people con...
INTRODUCTION Teenagers all over the world attract attention. The life and sexuality of the young people are very important for our generation. They are the future of this age. Their attitude and character today determine the future of our world. Their current problem today will equally determine the future problem of the world. In our society, "Sex oozes from every pore of the culture and there's not a kid in the world who can avoid it" said Charles Krauthammer (Meier, 1994,). Teenagers are ...