Important Oasis in the world

Important Oasis in the world Oasis is a fertile area in a desert or semi desert environment. Oasis provides habitats for animals and plants.   Country Name of Oasis Important Points Saudi Arabia Al-Ahsa Oasis Largest oasis in the world. 2.5 million palm and date palm trees. The oasis become a world heritage site in […]

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Neolithic Age or  New Stone Age 

Neolithic age or  New Stone Age  Neolithic age is a food producing age. The Neolithic Phase is also known as New Stone Age. In northern India, the Neolithic age emerged around c.8000- 6000 BCE. In some parts of southern and eastern India Neolithic age emerged around 1000 BCE. Subsistence of this age is agriculture, livestock […]

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Mesolithic age or Middle Stone Age

Mesolithic age or Middle Stone Age The period of Mesolithic age is between 10,000 BCE -8,000 BCE and this period is also called Middle Stone Age. The term Mesolithic is derived from two Greek words- meso and lithic. In Greek ‘meso’ means middle and ‘lithic’ means stone: Middle Stone Age. This age is the intermediate […]

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Paleolithic Age or Old Stone Age

Palaeolithic Age or Old Stone Age This is the first stage in the evolution of human civilization. Period between 500,000 BCE – 10,000 BCE. Around 36000 B.C. back human had become in form. It is also known as Homo Sapians. The term Paleolithic derived from the Greek word ‘Palaeo’ which means old and ‘lithic’ means stone […]

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MCQ on Chemical Reaction and Equation

MCQ on Chemical Reaction and Equation 1- Whenever a chemical change occurs, a chemical ………….. has taken place. (A) Reaction (B) Friction (C) Equation (D) Temperature   2- When a magnesium ribbon burns with a dazzling white fame and changes into a white powder. This white powder is ………………… (A) Magnesium oxide (B) Magnesium reaction […]

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Human Diseases caused by Virus

Human Diseases caused by Virus Name of Diseases Name of Virus Affected organ Polio Polio Virus Throat, Mumps Paramyxovirus Saliva producing glands AIDS ( Acquired Immunodeficiency syndrome Human immunodeficiency virus Defensive system (WBC) Lymphocytes Influenza (Flu) Orthomyxovirus Whole body Dengue Dengue Virus (DENV) Whole body particularly head, eyes and joint and Chicken Pox Varioia virus […]

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