Though all the nutrients are specific to health, let us see how calcium is important in particular. It is essential for strong immunity, and good for general health.It’s scarcity causes weak bones and many other problems.
Natural habitats support a variety of living organisms, some of which endemic to one particular habitat.
The Pollution of atmosphere leads to severe consequences on local, regional, national and international levels.
Thus, diversity of food is in fact the diversity of culture or at least you can say that cultural diversity of India is linked to its biodiversity. And so, the cultural diversity of the world is linked to its biodiversity. But often, we don’t get ready to accept it.
Ozone absorbs ultraviolet radiations so that much of it is never allowed to reach to the earth surface. The protective umbrella of ozone layer in the stratosphere protects the earth from harmful ultraviolet radiations. Ozone plays an important role in the biology and climatology on the earth’s environment. It filters out all the radiations that remain below 3000Å. Radiations below this wavelength are biologically harmful. Hence any depletion of ozone layer is sure to exert catastrophic impacts on life in the biosphere.
Bamboo can be said as the Green Gold to Indian Farmers as it provides vast varieties of benefits to them.
Toucan is a cute and friendly bird with a small rounded tail and a long, red and amazing bill. It belongs to family Ramphastidae of zoological order Piciformes belonging to the genus Ramphastos.
There are 37 species in Ramphastidae and the largest birds are known as Toco toucan. The bird about which we are going to talk about right now is the Toucan – yes, the Ramphastos aerial. You might have seen some famous TV serials with Toucan as one of the leading characters on the National Geographic; or some famous children’s films with Toucan as here- like Rio-.
The Pollution of atmosphere leads to severe consequences on local, regional, national and international levels.
Substances that are thrown out to some place due to their uselessness or excreted out of our body are called as waste substances.
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.
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.
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.
