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NCERT 7th Class (CBSE) Science: Chemical and Chemical Changes

NCERT 7th Class (CBSE) Science: Chemical and Chemical Changes

Question: Define the following: Valency, Atomicity, Chemical Equation, Rusting, Galvanization, Crystallization. Answer: Definitions are as follows: Valency: The combining capacity of atoms of an element with the atoms of other elements is known as valency. Atomicity: The number of atoms that make up a molecule of an element is known …

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NCERT 5th Class (CBSE) Social Science: The Temperate Zone

NCERT 5th Class (CBSE) Social Science: The Temperate Zone

Question: List the different grasslands founds in different zone and mention their location? Answer:  The Prairies in North America The Steppes in Russia The Pampas in South America The veld in South America The Downs in Australia Question: Explain the climate of the temperate grasslands? Answer: The climate of the temperate …

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NCERT 5th Class (CBSE) Social Science: Pollution

Pollution

Question: Name the different types of pollution? Answer: The different types of pollution are: Air Pollution Water Pollution Noise Pollution Land Pollution Question: Mention few ways to reduce air pollution? Answer: The five ways to reduce air pollution are: Walk whenever possible or use bicycle or public transport. Reduce use of …

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NCERT 5th Class (CBSE) Social Science: The Imaginary Lines – Latitudes and Longitudes

NCERT 5th Class (CBSE) Social Science: The Imaginary Lines – Latitudes and Longitudes

Question: What are latitudes and how many of them are there? Answer: Imaginary line drawn parallel to the equator which run east to west on earth’s surface are called latitudes. There are 181 line of latitude. Question: Differentiates between latitudes and longitudes. Answer: Question: What is prime meridian? Answer: The longitude …

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