Aquatic Zones

  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

Climate Change

 

  • National Environmental Appraisal and Monitoring Authority has been setup

 

 

India UK

UK-India Business Climate Leaders Group has been constituted. Comprising of leading CEOs the group will work on synergystic business for carbon reduction and joint work to evolve national emission reduction strategies.

FDI could be streamlined into low carbon initiatives.

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DMPQ- Short note on UN Habitat

It is the UN programme working towards a better urban future. Its mission is to promote socially and environmentally sustainable human settlements development and the achievement of adequate shelter for all.  It reports to the United Nations General Assembly. United Nations Conference on Housing and Sustainable Urban Development (Habitat conference) is held once in bi-decennial … Read more

POLLUTANTS AND TROPHIC LEVEL

  Movement of these pollutants involves two main processes:   Bioaccumulation refers to how pollutants enter a food chain. there is an increase in concentration of a pollutant from the environment to the first organism in a food chain.   Biomagnification refers to the tendency of pollutants to concentrate as they move from one trophic … Read more

Key Initiatives To Protect Marine And Coastal Environments

    Coastal Ocean Monitoring and Prediction System (COMAPS) Being implemented from 1991. Assesses the health of coastal waters and facilitates management of pollution-related issues Programme was restructured and modified in 2000 2001 to include pollution monitoring; liaison, regulation and legislation; and consultancy services. 2.Land Ocean Interactions in the Coastal Zone (LOICZ)   Launched in … Read more

DMPQ: Write in brief on non-conventional sources of energy

Wind Energy India‘s wind power potential has been assessed at 48500 MW. The current technical potential is estimated at about 13 000 MW, assuming 20% grid penetration, which would increase with the augmentation of grid capacity in potential states. The state-wise gross and technical potentials are given below India is implementing the world’s largest wind … Read more

BIOTIC INTERACTION

  The interaction between the organisms is fundamental for its survival and functioning of ecosystem as a whole. Type of Biotic Interaction Mutualism: both species benefit. Example: in pollination mutualisms, the pollinator gets food (pollen, nectar), and the plant has its pollen transferred to other flowers for cross-fertilization (reproduction).   Commensalism: one species benefits, the … Read more

DMPQ: . What are wetlands? What is Ramsar convention?

Wetlands are areas of marsh or peatland with water that is static or flowing, fresh, brackish or saline, including areas of marine water the depth of which at low tide does not exceed 6 m.   Wetlands are transition zones between terrestrial and aquatic ecosystems. E.g. Mangroves, lake littorals (marginal areas between highest and lowest … Read more

DMPQ- List out the different types of biofertilizers.

Different types of biofertilizers  Rhizobium Rhizobium is a soil habitat bacterium, which can able to colonize the legume roots and fixes the atmospheric nitrogen symbiotically. The morphology and physiology of Rhizobium will vary from free-living condition to the bacteroid of nodules. They are the most efficient biofertilizer as per the quantity of nitrogen fixed concerned. … Read more