WBPSC Prelims and Mains Notes-WBPSC Test Series
Fresh water ecosystems- The salt content of fresh bodies is very low, always less than 5 ppt (parts per thousand). E.g lakes, ponds, pools, springs, streams, and rivers Marine ecosystems – the water bodies containing salt concentration equal to or above that of sea water (i.e., 35 ppt or above). E.g shallow seas and … Read more
A tropical deciduous forest would grow in a place that is warm all year and the trees would lose their leaves at some point every year. Main characteristics of tropical deciduous forests are: These are the most wide spread forests of India. They are also known as the monsoon forests. They spread over areas of … Read more
Organic farming system in India is not new and is being followed from ancient time. It is a method of farming system which primarily aimed at cultivating the land and raising crops in such a way, as to keep the soil alive and in good health by use of organic wastes (crop, animal and farm … 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
India State of Forest Report 2019 has been prepared by Forest Survey of India (FSI). It is a biannual report. The report is prepared after mapping of forests and trees through satellite. Key highlights of the report are as follows: the forest area has increased by 3976 kilometers and the area of trees by 1212 … Read more
Fresh water ecosystems- The salt content of fresh bodies is very low, always less than 5 ppt (parts per thousand). E.g lakes, ponds, pools, springs, streams, and rivers Marine ecosystems – the water bodies containing salt concentration equal to or above that of sea water (i.e., 35 ppt or above). E.g shallow seas and … Read more
Farming, grazing of livestock, mining, and drilling combined account for more than half of all deforestation. Forestry practices, wildfires and, in small part, urbanization account for the rest. In Malaysia and Indonesia, forests are cut down to make way for producing palm oil, which can be found in everything from shampoo to saltines. In the … 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
Hydrofluorocarbons (HFCs) are a group of industrial chemicals primarily used for cooling and refrigeration. HFCs were developed to replace stratospheric ozone-depleting substances that are currently being phased out under the Montreal Protocol on Substances that Deplete the Ozone Layer. Many HFCs are very powerful greenhouse gases and a substantial number are short-lived climate pollutants with … Read more
Joint Forest Management (JFM) is an approach wherein state forest departments support local forest dwelling and forest fringe communities to protect and manage forests and share the costs and benefits from the forests with them. The Government of India consolidated the intervention on participatory forest management through the National Forest Policy, 1988, and then through … Read more