Prevention of entry into the environment: According to this principle, pollutants are checked at the point of their origin and are not allowed to enter into the environment by the application of specific devices.
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.
Modern development has caused a number of environmental problems at local, regional, national and international levels. Global Climate Change, depletion of ozone layer, increasing inequality, reduction in the means of livelihood for poor, scarcity of food, increasing number of disasters, extinction of species, falling underground water table etc. are some of the major environmental problems created by modern unsustainable development. These problems are challenging the existence of human race on this planet.
Bottle Gourd is also known as Calabas, White- flowered Gourd and Tasmanian Bean. Taxonomically, it is known as Lagineria siceraria belonging to the family Cucurbitaceae. It is a vine which is cultivated for its fruit used as a vegetable.
Cuscuta is found throughout the temperate and tropical regions of the world. It has great species diversity in subtropical and tropical regions of the world. It has many folk names like wizard net, devil’s hair, goldthread, hair weed, love wine; strangle weed, angel’s hair, and witch’s hair.
A Hybrid Green House dryer has been developed by Manoj Gaur, a professor at the department of Mechanical Engineering, Madhav Institute of Technology and Sciences Gwalior.
Teaching of environmental education is rather different. In involves practical experiences. For this both indoor and outdoor studies are essential.It also involves parents and community
Images of a number of vegetables start sliding one by one just as a slide show on the screen of the mind as we enter into the winter session of the yearly cycle. These vegetables are very important to us not alone for their taste value but for their medicinal and health value as well. Here is an introduction of two of these vegetables.
Both pomegranate and mango are nutritios fruits. These help us in keeping good health.
The application of scientific knowledge for practical purposes, especially in industry, is called as technology.
The mechanical process of breathing involves inspiration and expiration.
Two organisms- male and female are essential for sexual reproduction. Now let us study some basic methods of reproduction in single organisms.
