With the growth of human population, more and more land was cleared for cultivation, housing and cattle rearing. Later, as towns and cities started developing, vast areas of land were started to be consumed in making roads, rail tracks, bridges, buildings, markets, trade centres, Educational and Research Centres, hospitals, railway junctions, etc.
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
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.
Tulsi or the Holi Basil is taxonomically called as Ocimum tenuiflorum. It is an aromatic and perennial plant which belongs to the taxonomic family Lamiaceae
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.
We have many types of butterflies around us. These are good pollinators of crop plants and grass pollinators. Theecotrends lens has some images of these pollinators
ASSESSMENT: NCERT QUESTIONS WITH ANSWERS
The reflex action is an involuntary action which goes on automatically. We don’t have any control on this type of action. Walking, on the other hand is a voluntary action which can be controlled and modified by us.
Most of you us have seen the Baya birds – peculiar birds of monsoon season. These beautiful birds are found in many states of India and of course in many other countries of the world. These birds are also found all over Java and Sumatra.
Animals could be mainly divided into wild and domestic. However, the domestic animals that live under wild conditions are called Feral Animals. It is not very difficult to understand a domestic animal from a wild animal, by looking at them, as there are many differences exhibited between them.
Substances that are thrown out to some place due to their uselessness or excreted out of our body are called as waste substances.
The population explosions of earlier and present days have already caused and are still causing serious impacts on the global environment. As for the biological environment, the human population has stressed most biological systems, comprising flora and fauna, as well as biological diversity.
Ever since the earth was inhabited, humans and other life forms have depended on things that exist freely in nature…
