Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold (which is also caused by other viruses, predominantly rhinoviruses), while more lethal varieties can cause SARS, MERS, and COVID-19.
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China in December 2019.[7] The disease has since spread worldwide, leading to an ongoing pandemic. Symptoms of COVID-19 are variable, but often include fever, cough, headache, fatigue, breathing difficulties, and loss of smell and taste. Transmission of COVID-19 occurs when people are exposed to virus-containing respiratory droplets and airborne particles exhaled by an infected person. Those particles may be inhaled or may reach the mouth, nose, or eyes of a person through touching or direct deposition (i.e. being coughed on). COVID-19 affects different people in different ways. Most infected people will develop mild to moderate illness and recover without hospitalization. The most common symptoms are fever, dry cough, tiredness.
വേലിയേറ്റം ചന്ദ്രന്റേയും സൂര്യന്റേയും ഗുരുത്വാകർഷണഫലായി ഉണ്ടാകുന്ന പ്രതിഭാസമാണ് വേലിയേറ്റം. ദിവസേന രണ്ട് തവണ വേലിയേറ്റഫലമായി സമുദ്രജലം ഉയരുന്നു. ഏറ്റവും ശക്തിയേറിയ വേലിയേറ്റങ്ങൾ അമാവാസി, പൗർണ്ണമി ദിവസങ്ങളിലാണ് അനുഭവപ്പെടുന്നത്. രണ്ട് വേലിയേറ്റങ്ങളിൾക്കിടയിലെ ഇടവേള 12 മണിക്കൂറും 25 മിനുട്ടുമാണ്. അമാവാസി, പൗർണ്ണമി ദിവസങ്ങളിലുണ്ടാകുന്ന ശക്തിയേറിയ വേലിയേറ്റങ്ങളെ...
Algeria - Land of Algiers .
Argentina - Silvery Land .
Australia - Southern Land.
Austria - Eastern March.
Bahamas - The Shallows .
Bahrain - The Two Seas.
Belarus - White Russia.
Burkina Faso - Land of Honest Men.
Cameroon - Shrimp River.
Cape Verde - Green Cape .
Colombia - Land of Columbus .
Comoros - Moons.
Costa Rica - Rich Coast.
Dominica - Sunday Island .
Ecuador - Equator .
Eritrea - Land of the Red Sea .
Ethiopia - Land of the Blacks.
Guatemala - Place of Many Trees .
Guyana - Land of Many Waters .
Haiti - mountainous land .
India - Land of the Indus River .
Indonesia - Indian Islands .
Iran - Land of the Aryans .
Japan - Land of the Rising Sun .
Jordan - river Jorda...
Father of cloning = Ian Wilmut.
Father of computer = Charles Babbage.
Father of computer science = Alan Turing.
Father of Co-operation = Robert Owen.
Father of economics = Adam Smith.
Father of English Poetry = Geoffrey Chaucer.
Father of Essay = Montaigne.
Father of Genetics = Gregor Mendel.
Father of Greek Democracy = Clesthenes.
Father of Green Revolution = Norman Borlaug.
Father of history = Herodotus.
Father of internet = Vint Cerf.
Father of Jurisprudence = John Locke.
Father of Modern Cartoon = William Hogarth.
Father of Modern Tourism = Thomas Cook.
Father of Nuclear Physics = Rutherford.
Father of Printing = Guttenberg.
Father of psychology = Wilhelm Wundt.
Father of Reformation = Martin Luther King.
Father of Renaissance = Petrarch.
Father of Science = Galileo Galilei. LIN...