In this universe, earth is only the planet where life sustaining elements i.e. Land, Air and Water are present. Life exists because of these resources available on Earth. It creates a balance between living and non-living resources and sustaining both. The three basic and most important non-renewable resources for us are: – the air we breathe, the water we drink and the land on which we live. Without these three resources, our existence cannot be possible.
Air is a mixture of gases which is composed of nitrogen, oxygen and very small amounts of water vapor and other gases. Oxygen in the air is essential for all living beings because we use this oxygen to produce energy from the food we eat. The carbon dioxide from which we exhale is essential for the plants to take energy from the sun and convert it into food. Wind regulates the temperature of the Earth and causes different patterns of weather.
Water is required in all life on the planet because all chemical reactions that occur in living cells use water as a medium. Water is found in large bodies such as seas, seas, rivers and lakes. It is also found as vapor in the atmosphere and as a solid in ice, glaciers and ice shelves. Only small amounts of this natural resource are available in rivers and lakes. Thus water is essential for us not only for digestion of food but also for cooking as well as production of food grains and vegetables.
Earth is the base of life because it contains minerals useful for life. Most of these minerals are found in rocks, which cannot be used by plants or animals. Soil is formed by the breakdown of rocks by various geological, climatic and biological processes. The soil contains minerals like iron, zinc, nitrogen compounds, which are necessary for sustaining life. It also contains water and provides for the use of plants. We can extract metals like iron, copper, gold and aluminum from the soil. Read More…