AQUATIC ECOSYSTEM

  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

DMPQ:Ocean Acidification is one of the key effect of global warming. What is Ocean Acidification and How does it affect the marine ecosystem ?

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

Global Warming

  An increase in the average temperature of Earth’s near surface air and oceans since the mid-20thcentury 4thassessment report of IPCC: global temperature increased 74+18 degree C during the 20thcentury. Caused by greenhouse gases Water vapour, Co2, Methane, Nitrous Oxide, Ozone, CFCs (in order of abundance) Since the industrial revolution, the burning of fossil fuels has increased … Read more

FUNCTIONS OF MANAGEMENT

  Functions of Management:- Planning Organizing Staffing Direction Coordination and control Decision making OUTPUT Attainment goals effectively & efficiently       INPUTS/RESOURCES Human Finance   CONTROLLING Measuring performance with standards & taking corrective actions PLANNING Setting of objects & selecting ways ORGANIZING Establishing relationships, Delagting authority & assign tasks DIRECTING Leading & motivating employees … Read more

Cold Desert/ Temperate Desert

  Cold desert of India include areas of ladak, leh and kargil of kashmir and spiti valley of Himachal  Pradesh and some parts of northern Uttaranchal and Sikkim. Lies in rain shadow of Himalaya Oak, pine, deodar, birch and rhododendron are the important trees and bushes found there. Major  animal include yaks, dwarf cows, and … Read more

TYPE OF SETTLEMENT OF INDIA

Settlement can be defined as any form of human habitation which ranges from a single dwelling to large city. The word settlement has another connotation as well as this is a process of opening up and settling of a previously uninhabited area by the people. In geography this process is also known as occupancy. Settlements … Read more

Coral Reef and Coral Bleaching

  Coral is actually a living animal. has a symbiotic relationship (each gives something to the other and gets something back in return) With ‘zooxanthellae’ microscopic algae which live on coral [i.e. instead of living on the sea  floor, the algae lives up on the coral which is closer to the ocean surface and so … Read more