admin Races and Tribes * The people of the world have been classified into five racial groups according to Anthropologists . * They are Caucasoid (White), Mongoloid (Yellow), Negroid (Black), Australoid (Black) and Hottentots and Bushmen of the Kalahari. * Hottentots and Bushmen are two major groups of Negroids. Groups of people identified as tribes. … Read more
Ocean Currents Pacific Ocean Currents 1- Equatorial Current (Warm) 2- North Equatorial Current (Warm) 3- South Equatorial Current (Warm) 4- Peruvian Current (Cold) 5- Kuroshio or Japan Current and W Winds drift (warm) Current (warm) 6- California Current (Cold) 7- Oyashio or Kuril Current (Cold) 8- South Pacific Current 9- East Australian Current (Warm) … Read more
Geography The Polar Regions 1-Polar region is vert cold , only ice and snow can be seen. 2-The region which lies near the poles is called the polar region. 3-The boundary of polar region is called Arctic Circle. 4-The northern part of the continents within the polar region is known as Tundra. 5-Tundra region … Read more
General Awareness 1-In 1887 William Friese -Green of England invented camera capable of taking up to ten photographs per second. 2-The father of Telugu film industry was Raghupathi Venkaiah. 3-Raghupathi Venkaiah built the cinema studio Gaity. 4-In 1895 Woodwill Latham invented cinema projector. 5-Alam Ara is the first talkie movie in Hindi. 6-Bhisma Pratigna was … Read more
Biology – REPRODUCTION 1- Prevention of pregnancy in women is called contraception. 2- Single celled organisms (bacteria, amoeba and paramecium) reproduce by fission. 3- The structure of deoxy ribonucleic acid (DNA) is discovered by Watson & Crick. 4- Reproduction through budding occurs in yeast. Fragmentation occurs in spirogyra, lichens. 5- Mitosis was discovered … Read more
Biology – CO ORDINATION IN LIFE PROCESS 1-Amylase breaks starch into sugars (glucose). 2-Animals which are active during nights are called nocturnal animals. 3-Animals which are active during day are called diurnal animals. 4- Increasing ghrelin levels results in sensation of hunger. 5- pH beyond ‘7’ is alkaline and below ‘7’ is acidic. … Read more
Biology NATURAL RESOURCES and ENVIRONMENTAL EDUCATION 1- Centre for world solidarity is situated at secunderabad. 2-Variety of the living thing that populates the earth is called bio diversity. 3-World conservation strategy was proposed by IUCN in 1980. 4-Forests serve as lungs of the world. 5-FAO- Food and Agriculture Organization. 6-Ground water levels increase … Read more
Biology HEREDITY 1- Mendel (Father of genetics) experiments stands for Heredity. 2-Differences in characters with in closely related groups of organisms are called variations. Externally visible characters are called phenotype. 3-TT or YY, Tt or Yy are responsible for a dominant character. 4-There are nearly 180 vestigial (not useful) organs … Read more
Biology CO ORDINATION 1. Hypothalamus controls pituitary gland. 2.Brain is covered by three layers called meninges. 3.Afferent neurons are also called sensory neurons and efferent neurons are motor nerves. 4.Cerebellum maintains posture, equilibrium and muscle tone. 5. Interruptions in Myelin sheath (made up of Schwann cells) are called nodes of ranvier. 6.The functional and structural … Read more