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.
Medicinal weed Argemone Mexicana or Satyanasi is a prickly weed. It has been introduced and naturalized in India. It grows as waste land weed in almost every part of the country. It is reported as crop weed also in many parts of the country.
Many ferns grow along north or west facing walls every year. Their spores might have been there in crevices during the dry season. Unless there is a supply of water from leaking pipe they complete their life cycle within the rainy season and pack up with the passing rains. They pass away and leave for us a lesson to remain happy and survive in hard conditions.
The process by which a new species is introduced into a habitat is called as Bio invasion. A number of…
The Chief Justice of Jharkhand High Court Dr. Ravi Ranjan and Justice S.N.Prasad heard on the PIL demanding encroachment free conservation of Ranchi’s Bara Talab (so called Ranchi Lake) and other water sources on Thursday i.e. on 8th April, 2021.
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.
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.
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.
Some environmentalists define land pollution as – build up of toxic chemical compounds, salts, pathogens or radioactive materials in soil that can affect plant and animal life adversely, is called as soil pollution.
The Government of India is planning to offer mid-day-meal to the helpless elderly persons also. Till now, school going children of up to 8th standard of schooling were provided free mid-day- meal in their schools.
The World Aids Day is celebrated the world over on the first December every year to make the public aware about the infection of HIV (Human Immuno Virus).The celebration of this day on the world scale was first started by the World Health Organisation in 1987.
