BPSC Prelims and Mains Notes, BPSC Test Series
It is a global development agency with missions that include promoting sex education, literacy, clean water and equality for women. It is responsible for promoting peace, social justice, human rights and international security through International cooperation on educational, science and cultural programs. It has 195 member states and is based in Paris, France.It is known … Read more
Mineral is a naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characteristic crystalline structure, color, and hardness Minerals are valuable natural resources that are finite and non-renewable. The history of mineral extraction in India dates back to the days of the Harappan civilization. The wide availability of minerals in the … Read more
Wetlands are lands transitional between terrestrial and aquatic system where the water table is usually near the water surface and land is covered by shallow water. Essential as: control floods, water treatment, recharging of water sources, reduce sediments, check soil erosion, bulwark against encroachment by the sea, winter resort for birds and important … 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
They do not contain harmful chemicals that would cause air pollution. Components are replaced with others that are less dangerous and less harmful to the atmosphere. The idea was carried forward by a network of CSIR labs. The team came up with 3-4 formulations and looked at 30-40% of active materials which reduce particulate matter. … Read more
Agenda 21 is a non-binding and voluntary implementation plan of United Nations with regard to sustainable development. Agenda 21 is a comprehensive plan of action to be taken globally,nationally and locally by organizations of the United Nations System,Governments, and Major Groups in every area in which humanimpacts on the environment. Agenda 21, the Rio Declaration … Read more
Chipko movement, also called Chipko andolan, nonviolent social and ecological movement by rural villagers, particularly women, in India in the 1970s, aimed at protecting trees and forests slated for government-backed logging. The movement originated in the Himalayan region of Uttar Pradesh (later Uttarakhand) in 1973 and quickly spread throughout the Indian Himalayas. The Hindi word … Read more
Impacts of global warming Hotter days 2015 was the hottest year on record, the previous record was broken in 2014, and 2016 is expected to set a new record for the third year in a row. In the past few years records have being broken for longest heatwaves and the Bureau of Meteorology has added … Read more
Concept Definition Carbon sequestration Carbon sequestration is the process of removing carbon from the atmosphere and storing it in a fixed molecule in soil, oceans or plants. Carbon sink An organism or landscape that stores carbon is called a carbon sink. Carbon source An organism or landscape that emits carbon is called a carbon source. Climate change adaptation … Read more
An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. Many of the planets in this solar system have atmospheres, but none that we know of have an atmosphere quite like ours – one that can support life. The … Read more