WBPSC Prelims and Mains Notes-WBPSC Test Series
Secondary treatment is a biological treatment process used to stabilize the dissolved solids. Microorganisms (e.g., bacteria) feed on the organic solids (food) in the wastewater and convert the organics into a cellular or biological mass that can later be removed. These biological processes are aerobic processes. Oxygen must be provided for these aerobic organisms to … Read more
WEST BENGAL States praised West Bengal govt’s official emblem States praised the West Bengal government official emblem, conceptualized and designed by chief minister Mamata Banerjee. The state emblem – the “Biswa Bangla” logo with Ashoka Pillar of the national emblem – would be used in all the official works and documents of the Bengal government … Read more
located where river meets the sea. the most productive water bodies in the world The complete salinity range from 0-35 ppt is seen from the head (river end) to the mouth (sea end) of an estuary Coastal lakes which have their connection with the sea through small openings are better known as lagoons or … Read more
Natural Ecosystem- Terrestrial- Forests, Grasslands, Deserts Aquatic- Fresh Waters, Saline Waters, Marine Waters Ecotone :- a zone of junction between two or more diverse ecosystems. For e.g. the mangrove forests represent an ecotone between marine and terrestrial ecosystem. Characteristics of Ecotone It may be very narrow or quite wide. It has the conditions intermediate … Read more
Rainfall: With an average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. At one extreme are areas like Cherrapunji, in the northeast, which is drenched each year with 11,000 mm of rainfall, and at the other extreme are places like Jaisalmer, in the west, which receives barely … Read more
found where rainfall is about 25-75 cm per year, not enough to support a forest, but more than that of a true desert. vegetation formations that are generally found in temperate climates. In India, they are found mainly in the high Himalayas. The rest of India’s grasslands are mainly composed of steppes and savannas. … Read more
The Living Planet Index (LPI) is a measure of the state of global biological diversity based on population trends of vertebrate species from around the world. It does this in much the same way that a stock market index tracks the value of a set of shares or a retail price index tracks the cost … Read more
Pre-Harappan Period Lower Paleolithic Hand axe & cleaver industries Pahalgam, Belan valley (U.P), (600,000 – 60,000 BC) Bhimbetka, Adamgarh, 16 R Singi Talav Middle Paleolithic Tools made on flakes Bhimbetka, Nevasa, Pushkar, Rohiri (150,000 – 40,000 BC) … Read more
Pro-Active and Responsive facilitation by Interactive, Virtuous and Environmental Singlewindow Hub was recently launched by the Prime Minister of India. It is a Single-Window Integrated Environmental Management System, launched on the occasion of World Biofuel Day. It has been designed, developed and hosted by the Ministry of Environment, Forest and Climate Change (MOEFCC), with technical … Read more
WEST BENGAL Government forms panel to fight rising air pollution in Kolkata The state government has set up an inter-departmental committee, under the chairmanship of environment minister Sovon Chatterjee, for a concerted effort to combat air pollution. The committee will come up with a detailed road map — short-term and long-term — to maintain ambient … Read more