The biosphere is itself a vast ecosystem which incorporates all the small ecosystems. But, the biosphere may have different types of physical conditions, communities of plants and animals, and climatic conditions in its different zones.
Roots of plants too, respond to the changes in climate.
The food eaten by any one comprises many different components like – Carbohydrates, Proteins, fats, Minerals, and Vitamins and water. For humans and big animals water too has been accepted as a necessary component of food.
Waste too is found in three states- solids, liquids and gases. Liquid wastes such as different types of chemicals, useless medicines, detergents, pesticides, oil, automobile wastes etc. spread on the soil surface and make it poisoned. Decomposition and burning of things on ground produce different gases that pollute the air.
Sankranti or Solstice means: moving from one place to the other or meeting with another. When sun enters from one rashi o the other rashi, it is called as Sankranti.
More than half of the population of the world comprises farmers. These farmers know that maintenance and conservation of natural resources are very important to sustain their livelihoods. However, the demand of more and more food due to exploding population and higher expectations for comfort and wealth forces these farmers to exploit more and more of the natural resources through the application of modern technology.
It is said that corporations can destroy the world’s intact forests. They have also the Power to help save them. They can make an impact by introducing zero- deforestation policies. These policies require suppliers to produce commodities such as timber, beef, palm oil, and fibres for paper in such a way that has a minimal impact on natural forests and climate. These can also introduce paper procurement policies that set ambitious targets to maximise the use of post-consumer recycled wood, pulp, paper and fibre in their products and ensure that any virgin fibre used is certified by a rigorous third-party certification system.
Soil is the loose material that covers the land surface of the earth, supports the growth of plants and acts as a habitat for numerous organisms.
When a new plant is developed or caused to develop through stem, root or leaf the method is called as vegetative reproduction. In other words, vegetative reproduction means- reproduction through anyone of the vegetative parts of the plant.
Land management is the process of managing the use and development of land resources in rural and urban areas.
The application of scientific knowledge for practical purposes, especially in industry, is called as technology.
The Envelope of air held around the earth by its magnetic force, gravity or geomagnetism, is called the atmosphere.
