Technological Evolution in 20th century
The application of scientific knowledge for practical purposes, especially in industry, is called as technology.
Science
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Management of Natural Resources
Ever since the earth was inhabited, humans and other life forms have depended on things that exist freely in nature…
United Nations System
On June 26, 1945 fifty-one; nations representing 80% of the world’s population approved and signed a charter for the establishment of a world body of nations – the United Nations Organisation (UNO); at San Francisco.
Diversity of leaves and Leaf-fall
Though there are two basic types of leaves of monocotyledonous and dicotyledonous plants, we observe immense diversities in their arrangements, sizes, and shapes.
Some leaves are very short, as short as they cannot be seen through naked eyes where as there are big broad leaves that can form many umbrellas for small children.
Value of Birds that Live in Our Surroundings
For one it is the indication of meeting the other, either boy or the girl. This belief prevails in many parts of India including Jharkhand. If by chance, you spot a single myna, it is sure that your day is going to be alone on the whole. It comes true most of the time.
Different Plant- Movements
The positive movements of a plant shoot in response to light or movement of shoot towards the source of light is called as Phototropism. If the part of a plant moves away from light, this movement is called as Negative Phototropism.
How does Nutrition take place in Human Beings?
In a human being the ingestion of food is brought about in mouth where it is crushed into fine pieces by teeth.
Types of species
Species can be classified in many different ways. One species classification system may categorise species into Typological, evolutionary, and phylogenetic species.
Working Time and Leisure Time: the Basic Concepts
Working time is the time when a person remains busy in doing some work. It may be the part of his daily routine when he has to do something either assigned by an organisation or by his own plan of work.
Types of animals: Vertebrates and Invertebrates
According to their physical make up, there are basically two types of animals- Vertebrates and invertebrates. Invertebrates are those animals that don’t have a vertebral column or backbone. On the other hand, Vertebrates are those animals who have a vertebral column or the back bone.
Play as work and a way to Social Negotiations
Many people are working longer and harder, thinking that this will solve the problem of an ever-increasing workload. But they are still falling behind, becoming chronically overwhelmed, and burning out.
