Winds and its Types

Introduction The horizontal movement of air along the earth’s surface is called a Wind. The vertical movement of the air is known as an air current. Winds and air current together comprise a system of circulation in the atmosphere. The movement and the speed of...

Interdependence of Plants and Animals

The two principal groups of living organisms are plants and animals. From the very early phase of evolution both the communities have lived together side by side in an intimate association to form the biotic environment or biosphere. In a stable ecosystem the plants...

Interdependence of Plants and Animals

The two principal groups of living organisms are plants and animals. From the very early phase of evolution both the communities have lived together side by side in an intimate association to form the biotic environment or biosphere. In a stable ecosystem the plants...

Agriculture in India

Introduction Agriculture in India has a long history dating back to ten thousand years. Today, India ranks second worldwide in farm output. Agriculture and allied sectors like forestry and logging accounted for 16.6% of the GDP in 2007, employed 60% of the total...

The Skeletal System

Skeleton and its Functions The skeleton is among the busiest and the most durable of all living organs of the body. Human bones have been found that are nearly a million years old. Apart from forming the supporting framework of the body, the bones are manufacturing...