WBPSC Prelims and Mains Notes-WBPSC Test Series
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
It unites 183 countries in partnership with international institutions, civil society organizations (CSOs), and the private sector to address global environmental issues while supporting national sustainable development initiatives. The GEF provides grants for projects related to biodiversity, climate change, international waters, land degradation, the ozone layer, and persistent organic pollutants. The GEF also serves as … Read more
India is facing the water crisis due to various factors and major reasons are decline in the per capita availability of water. As per the above stats the water crisis is deepening and is going to create huge problem. Recently Chennai faced a severe water crisis. IIT Chennai was forced to shutdown for two months. … Read more
The elements or mineral nutrients are always in circulation moving from non-living to living and then back to the non-living components of the ecosystem in a more or less circular fashion. This circular fashion is known as biogeochemical cycling (bio for living; geo for atmosphere). Nutrient Cycling: The nutrient cycle is a concept that describes … Read more
Ecology is defined “as a scientific study of the relationship of the living organisms with each other and with their environment.” The classical texts of the Vedic period such as the Vedas, the Samhitas, the Brahmanas and the Aranyakas-Upanishads contain many references to ecological concepts .The Indian treatise on medicine, the Caraka- Samhita … Read more
Mangroves are the characteristic littoral plant formation of tropical and subtropical sheltered coastlines. are trees and bushes growing below the high water level of spring tides which exhibits remarkable capacity for salt water tolerance. basically evergreen land plants growing on sheltered shores, typically on tidal flats, deltas, estuaries, bays, creeks and the barrier islands. … Read more
WEST BENGAL US envoy all for trade ties The US has underscored the need for the right environment to promote trade and investment in Bengal and India. US ambassador Kenneth I. Juster said removal of non-trade barriers would, in the long run, aid investment that depends on market, regulatory climate, governmental … Read more
When Carbon dioxide mixes with ocean water it lowers the pH and causes acidification. The level of atmospheric CO2 is increasing after industrial revolution . This increase in CO2 lowers the pH and hence the acidity. When CO2 reacts with H2O it forms weak carbonic acid. It furtherreacts with water to release bicarbonate ions and … Read more
Aquatic systems are not called biomes, The major differences between the various aquatic zones are due to salinity, levels of dissolved nutrients; water temperature, depth of sunlight penetration. Fresh Water Ecosystem-Fresh water ecosystem are classified as lotic (moving water) or lentic (still or stagnant water). Marine Ecosystem- Estuaries-Coastal bays, river mouths and … Read more
Human-wildlife conflict refers to interaction between wild animals and people and resultant negative impact on people or their resources, or wild animals or their habitat. According to data from the Ministry of Environment, Forests and Climate Change, conflict with wild animals (mostly elephants and tigers), has killed more than 1,100 people across India between 2014 … Read more