Urban areas are usually densely populated locations. People migrating from villages towards cities further increase the population burden of cities. Thus urban areas are suffering from serious congestion and traffic problems. Here is a case of Ranchi.
Sun is the only source of energy in the biosphere. Every living being can get its share of energy through food only and the energy is directly or indirectly obtained from green plants only.
When a new plant is developed or caused to develop through stem, root or leaf the method is called as vegetative reproduction. In other words, vegetative reproduction means- reproduction through anyone of the vegetative parts of the plant.
Mixing of different types of substances in soil- which affects its natural qualities, and reduces its fertility- is called as soil pollution. Some environmentalists define soil 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.
A group of individuals of a particular species occupying a particular area at specific time is called as population.
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-.
There are many different types of technologies or technological models- such as Low-tech, Hi-tech, alternative, intermediate, appropriate, blended, hard, and soft technologies.
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 organic matter formed through degradation of decomposable biomass and which is rich in nutrients for the growth and development of plants is called as compost.
Acrowd of women listening the lecture about malnutrition.
1. Trait-A exists in 10% of a population of an asexually reproducing species and trait-B in 60%of the same population….
Energy is essential for working and survival of all the organisms on this planet. In fact, it is the energy which enables organisms to perform their biological functions.
