TNPSC Prelims and Mains Notes-TNPSC Test Series
An increase in the average temperature of Earth’s near surface air and oceans since the mid-20th century 4th assessment report of IPCC: global temperature increased 74+0.18 degree C during the 20th century. Caused by greenhouse gases Water vapour, Co2, Methane, Nitrous Oxide, Ozone, CFCs (in order of abundance) Since the industrial revolution, the burning of fossil fuels has increased … Read more
Sound is measured in decibels (dB). An increase of about 10 dB is approximately double the increase in loudness. A person’s hearing can be damaged if exposed to noise levels over 75 dB over a prolonged period of time. The World Health Organization recommends that the sound level indoors should be less than 30 … Read more
Percentage Percent means for every 100 So, when percent is calculated for any value, it means that we calculate the value for every 100 of the reference value. percent is denoted by the symbol %. For example, x percent is denoted by x% x%=x/100 Example : 25%=25/100=1/4 To express x/y as a percent,we have x/y=(x/y×100)% Example : … Read more
It gave birth to ideas of liberty, freedom and equality It led to the end of monarchy in France A society based on privileges gave way to a new system of governance The Declarations of the Rights of Man during the revolution, announced the coming of a new time. The idea that all individuals had … Read more
According to FAO Food Security is “a situation in which all people at all times have access to adequate quantities of safe and nutritious food to lead a healthy and active life”. This definition requires three basic conditions to be met: 1) adequacy, i.e. supplies from domestic production, stocks and imports are sufficient to meet the … Read more
Functions of Management:- Planning Organizing Staffing Direction Coordination and control Decision making OUTPUT Attainment goals effectively & efficiently INPUTS/RESOURCES Human Finance CONTROLLING Measuring performance with standards & taking corrective actions PLANNING Setting of objects & selecting ways ORGANIZING Establishing relationships, Delagting authority & assign tasks DIRECTING Leading & motivating employees … Read more
Marketing involves a number of activities. To begin with, an organisation may decide on its target group of customers to be served. Once the target group is decided, the product is to be placed in the market by providing the appropriate product, price, distribution and promotional efforts. These are to be combined or mixed … Read more
Niche:- a description of all the biological, physical and chemical factors that a species needs to survive, stay healthy and reproduce. No two species have exact identical niches. Niche plays an important role in conservation of organisms. Types of Niche Habitat niche – where it lives Food niche – what is eats or decomposes … Read more
1781: Hastings set up the Calcutta Madrasah for the study and teaching of Muslim law and related subjects 1791: Jonathan Duncan started a Sanskrit College at Varanasi for the study of Hindu law and philosophy. 1813: Charter of 1813 directed the Company to spend Rs. 1 lakh for promoting modern sciences in the country. This … Read more
After the WWII began, British sought cooperation from India. August Offer offered three proposals. Firstly, it called for an immediate expansion of Viceroy’s Executive Council with the inclusion of India representatives; secondly, an advisory body with the members from British India and Indian princely states which were supposed to meet at consequent intervals was established … Read more