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.
It has become a common thing to take phone in hand always.
Ecosystems can be categorised into two broad categories: natural and artificial. Natural Ecosystems are those ecosystems that operate by themselves under natural conditions. These ecosystems are further categorized as Terrestrial and Aquatic Ecosystems. Terrestrial ecosystems relate to lands, whereas Aquatic ecosystems relate to fresh or marine water. Freshwater ecosystems may be Lotic or Lentic. Lotic are running water ecosystems like springs, streams or rivers, whereas Lentic Fresh Water Ecosystems may be found in standing waters of lakes, ponds, pools, puddles, ditches, swamps, etc. Marine Ecosystems are found in marine waters of salt lakes, seas, oceans and estuaries. Artificial Ecosystems are man-engineered ecosystems like crop fields, artificial ponds and lakes, aquaria, fish ponds, and abandoned mines reclaimed as lakes or water bodies for recreation.
Species can be classified in many different ways. One species classification system may categorise species into Typological, evolutionary, and phylogenetic species.
Kheksa is taxonomically known as Momordica dioica. It is commonly known as Kheksa, Spiny gourd, bristly Balsam pear, and Prickly carolaho, Kantola etc. It belongs to the family Cucurbitaceae.
Dayan system is a traditional bad practice and superstition in Jharkhand. If we compare this system with other states we see that it is graver in Jharkhand. In this state more than 1231 women are declared as Dayan per year. After being declared as Dayan these women are differently tortured and pained sometimes up to death.
April 2 every year is celebrated as the World Autism Day. The aim of the celebration of this day is to create Awareness among parents about this problem with their children.
Energy is the basic force capable of running life. But, the sources of energy are running short.
It is the unthinkable huge magnitude of all the ill effects of pollution and its ever-increasing nature, which has forced the whole of humanity to do a great deal of serous thinking about its attitude towards the relationships with the natural environment.
Environment may be defined as ‘Complete range of various sets of external conditions comprising- physical, biological, and for human beings- cultural, economic and political conditions; in which human beings and other life forms exist in continuous interactions among themselves.
Adolescence remains a critical phase of life. Extra efforts are to be put in managing teens especially in a disturbed period like spread of a pandemic when we have to remain indoors during a lockdown.
Dictionary defines the term Niche as a comfortable or suitable position in life of a living being, or a role taken by a type of organism within its community.
