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What is the role of the ozone layer for living beings?
Ozone, O3, is a gas of the atmosphere that filters ultraviolet radiation from the sun disallowing most of that radiation from reaching the surface of the planet. Ultraviolet radiation is harmful for living beings because it is a mutagen and can cause cancer (mostly skin cancer), other DNA mutations and even burns.
Deficency Diseases and Metabolic Disorders Nutrients required for life sustenance are grouped into 6 basic classes, viz. water, carbohydrates, proteins, fats, minerals and vita
What is the vascular cambium? What is its function? Vascular cambium is the secondary meristematic tissue that in roots and in the stem creates the vascular tissues (xylem and
Explain about the forces acting on a gravity retaining wall. Forces Acting on a Gravity Retaining Wall: In a general way the forces that act on a gravity retaining wall. The
Brain Neurosecretory Cells and their Hormones Kopec was the very first to suggest the role of hormones in controlling metamorphosis. On the base of his experiments on the lar
porifera canal system skeleton
Cellular Transport Cellular transports demote to the movement of compounds across the outer wall or membrane of the cell. This transport is critical in two respects. Firstly, t
Explain about the various Cooking methods? All of us eat food either raw or in cooked form. Have you ever thought why we need to cook food? Cooking is a primary process to mak
procees of excretion in reptiles
A balanced diet must have enough energy to meet the body's needs. What else must it have? In addition to sufficient energy, a balanced diet must have proteins, car
Discuss in short about soil " The collection of natural bodies in the Earth's surface, in places modified or even made by man of Earthy materials, containing living matter an
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