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Biomass 1-Biomass is a renewable energy resource derived from plant and animal waste. 2-Biomass fuels can be used directly or they can be transformed into more convenient form and then used 3-Biomass can be converted into alcohol (liquid biofuels) by distillation 4-Ethanol, Methanol, Gasoho, Biodiesel are Liquid Biofuels … Read more
Amino Acids – Proteins 1-Amino acids are organic compounds containing an amino group [NH2] and an acidic group [COOH] as substituents on the same carbon i.e., the a-carbon. Hence, they are called a-amino acids. 2-Amino acids contain amino (–NH2) and carboxyl (–COOH) functional groups. 3-Amino acids are classified as acidic, basic or … Read more
Geography SOLAR SYSTEM 1-Our solar system consists of the sun (the star), planets, satellites, millions of smaller bodies like asteroids, meteorites and comets and huge quantity of dust-grains and gases. 2-Out of the nine planets, Mercury, Venus, Earth and Mars are called as the inner planets as they lie between … Read more
Geography Biodiversity 1-Biodiversity is the variety of plant and animal life in the world or in a particular habitat. 2-It is an essential component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines and other resources to mankind. 3-The term biological diversity was used first by … Read more
Rivers East Flowing Peninsular Rivers 1- Krishna River 2- Pennar River 3- Godavari River 4- Mahanadi River 5- Kaveri (Cauvery) River 6- Vaigai River 7- Subarnarekha River 8- Sarada River 9-Ponnaiyar River 10- Brahamani River Godavari River 1-The Godavari River rises from Trimbakeshwar in the Nashik district of Maharashtra about 80 km … Read more
Sun -Planets -Comets – Important Points/Facts 1-Temperature = 6000 C on surface and 16 million C in core 2-Density = 1.41 times that of water 3-Age = 4.6 billion years 4-Diameter = 13,91,785 km (~1.3 million km) 5-Period of rotation = 25 days 9 hrs 6-Speed of rotation = 7179.73 km/hr (Earth’s rotational velocity = … Read more
Biology Cell 1- Robert Brown -Discovered Cell Nucleus in 1831 2-Schleiden and Schwann presented the cell theory, that all the plants and animals are composed of cells and that the cell is the basic unit of life. 3-Robert Hooke – Discovered and coined the term cell in 1665 4- It was possible to observe … Read more
Chemistry Glossary 1- Acid – Compound that gives off H+ ions in solution. 2-Base – Substance which gives off hydroxide ions (OH-) in solution. 3-Catalyst – Substance that speeds up a chemical process without actually changing the products of reaction. 4-Density – Mass per unit volume of a substance. 5-Effusion – Movement of gas molecules … Read more
Chemistry Atomic Structure ; introduction to periodic table 1-Created by Dmitri Mendeleev (1834-1907), the periodic table orders all known elements in accordance to their similarities 2-The periodic table is a chart that categorizes elements by “groups” and “periods.” All elements are ordered by their atomic number. 3-The atomic number is the number of protons per … Read more
Geography 1- India lies in the hemisphere – Northern and eastern 2-The state having largest area under waste land is Rajastan 3-Myanmar is closest to Andaman Islands 4-Tropic of Cancer passes through the middle of India 5-Indus is a Trans- Himalayan river. 6-The two Volcanic islands in the Indian territory are Pamban and Barren 7- … Read more