Need of studying Fertility in Demography

Fertility concerns the addition of new members to a population by birth; that is, the actual performance of a population in bearing children. It is one of the components of population change. Births and deaths are technically referred to as fertility and mortality in demography. It differs from fecundity, which refers to the physiological capability

Traffic Island | Purpose and Importance

What is a traffic island? Traffic Island can be a physical structure or a painted object found on roads and roadside. The primary purpose of a traffic island is better & orderly flow of traffic. These are also referred to as channelizers as these “channelizes” the traffic plying on the road. These may be raised

Effects of Air Pollution on Plants

Impact of Air Pollution on Plants Air Pollution affects plants also in number of harmful ways just like humans. The various toxic gases which are released in atmosphere triggers harmful chemical reactions. The burning of hydrocarbons in motor vehicle engines gives rise to CO2, CO, SO2 (sulfur dioxide), NOx (NO [nitrogen monoxide]) and NO2 in