Water cycle, The Water Cycle: The importance of water is obvious to e...

The Water Cycle: The importance of water is obvious to everyone. Water is synonynlou.  with life. The most comnlon substance in  the body of  iinv organism is water. It is al

Exploration of resources, Exploration of resources Exploration of re...

Exploration of resources Exploration of resources  involves complex techniques which depend on the physical, chemical and biological properties of a particular resource. Now

State the harmul effects of acidity of soil, State the harmul effects of Ac...

State the harmul effects of Acidity of soil Acidity of soil may have harmful effects on plants due to the effect on enzymatic changes, reduced availability of nutrients like c

Introduction to fire hazards, INTRODUCTION : In the first unit of this blo...

INTRODUCTION : In the first unit of this block you read about hazards due to electricity and gases in the science laboratories. 'The second unit deals with yet another type of com

Explain antibodies, Explain Antibodies Antibodies (also referred to as ...

Explain Antibodies Antibodies (also referred to as immunoglobulins and garnmaglobulins) are produced by plasma cells. They are Y-shaped proteins that each respond to a specific

State in brief about the metamorphic rocks, Metamorphic rocks Igneous a...

Metamorphic rocks Igneous and sedimentary rocks that have been altered from their previous condition through the combined action of heat and pressure below Earth's surface are

Other visible light hazards-lasers, Other visible light hazards : Ordinary...

Other visible light hazards : Ordinary, visible light can present a hazard under certain conditions. You can burn paper by focussing the sun's rays using a small magnifying lens.

Why cameleon change colour?,

Explain the olfactory receptors, Explain the Olfactory receptors In the...

Explain the Olfactory receptors In the section on taste receptors earlier, we learnt that there is a regional distribution of taste buds for primary taste sensations like sweet

Chemical reactions of amino acids, Chemical Reactions of Amino Acids Th...

Chemical Reactions of Amino Acids The chemical reactions of amino acids can be divided into three classes: i)  Reactions of carboxylic group ii)  Reactions of amino group