NATURAL RESOURCES

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NATURAL:

NATURAL RESOURCES By Rajiv Roy. P 10331A0229

DEFINITION:

Natural resourc e s are things that are found in nature that are useful to people. D EFINITION 2

INTRODUCTION:

Life on this planet earth depends upon a variety of goods and services provided by the nature, which are known as natural resources. Thus water ,air ,soil, minerals, coal, forests, crops and wildlife are some examples of natural resources. INTRODUCTION 3

Basic types:

The natural resources are of two types : Renewable resources. Non-renewable resources . Basic types 4

ABOUT:

Renewable resources: Which are in exhaustible and can be regenerated within a given span of time. e.g : forests , wildlife ,wind energy, biomass energy, tidal energy , hydro power etc. Non-renewable resources : Which cannot be regenerated. e.g : fossil fuels like coal, petroleum , minerals etc. ABOUT 5

Types of resources:

Forest resources. Water resources. Mineral resources. Food resources. Energy resources. Land resources. Types of resources 6

Forest resources:

A forest is any area with a lot of trees. There are forests all over the world. The type of forest varies depending on the location of the forest: for example, there are tropical rain forests, coniferous forests, and deciduous forests. Almost 70% is still forest, 1/3 of the forest land is non-commercial. Forest resources 7

Water resources:

Water is an indispensable natural resource on this earth on which all life depends. About 97% of the earth’s surface is covered by water and most of the animals and plants have 60-65% water in their body. Out of the total water reserves of the world, about 97%is salty water(marine) and only 3% is fresh water. Water resources 8

MINERAL RESOURCES:

Minerals are naturally occurring, inorganic, crystalline solids having a definite chemical composition and characteristic physical properties . There are thousands of minerals occurring in different parts of the world. However, most of the rocks, we see everyday are just composed of a few common minerals like quartz, feldspar, biotitic, dolomite, calcite, laterite etc. These minerals in turn are composed of some elements like silicon, oxygen, iron, magnesium, calcium, aluminum etc. MINERAL RESOURCES 9

FOOD RESOURCES:

We have thousands of edible plants and animals over the world out of which only about 3 dozen types constitute the major food of humans. The main food resources include wheat, rice, maize, potato, etc About twenty or so common fruits and vegetables, milk, meat, fish and sea foods are also available. Amongst these wheat, rice and maize are major grains. FOOD RESOURCES 10

LAND RESOURCES:

Land is a finite and valuable resource upon which we depend for our food, fibre and fuel wood, the basic amenties of life. Soil, especially the top soil is classified as a renewable resource because it is continuously regenerated by natural process thought at a very slow rate. About 200-1000 years are needed for the formation of one inch or 2.5cm soil, depending upon the climate and the soil type. LAND RESOURCES 11

ENERGY RESOURCES:

Energy consumption of a nation is usually considered as an index of its development. We find wide disparities in per capita energy use b/w the developed and the developing nations. The first form of energy technology probably was the fire,which produced heat and the early man used it for cooking and heating purposes. ENERGY RESOURCES 12

Conclusion:

Natural resources are very important for human mankind. They have to be utilized according to their needs. So protect our natural resources. Conclusion 13

PowerPoint Presentation:

Natural Resources: Vital and valuable 14

PowerPoint Presentation:

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