Anything from which we can derive energy is called as a source of energy. Since all the life processes need energy, energy is most important for our survival.
Our body derives energy from the food we eat. Thus, the food we eat is the source of energy for our body. But this is not the whole story. We need energy for our growth and economic development as well.
Living beings in environment like animals and plants constitute more than half of the environment in the biosphere. All of these need to be conserved.
Constructing a new infrastructure; expanding a residential area; building an industrial plant; increasing the capacity of an airport – are some typical examples of developments that can be carried out only if the competent planning authorities grant the authorization.
Onion is a bulb. It is a vegetable which is most widely cultivated species. Its genus is Allium. This genus…
There are many different types of technologies or technological models- such as Low-tech, Hi-tech, alternative, intermediate, appropriate, blended, hard, and soft technologies.
The environment of our earth has a number of life zones that support birth and development of all types of organisms.
All the life zones of the earth are collectively called as Biosphere.
The biosphere vertically extends into the atmosphere up to about 10 km and downwards into the oceans up to a depth of about6.9 km.
Ladybird is one uncommon compound word made by the union of two simple common words – Lady and Bird. But,…
The carrot which is taxonomically known as Daucus Curota sub species sativus is an important plant. It is typically orange or blood red in colour. However, it is found in many colours like white, red, yellow etc. All of these are domesticated forms of the wild carrot.
Growth and movements in plants occur due to internal and external factors. Plant hormones are internal factors while light, touch, gravity and other stimuli are external factors that affect plant growth and movements.
The process of preparing food for consumption with the use of heat is called as cooking. The art and science of cooking is called as cookery.
Substances that are thrown out to some place due to their uselessness or excreted out of our body are called as waste substances.
