1) A topo map uses what to indicate the location of various features. a) Colours b) Symbols c) Conventional symbols d) Grid system 2) What are the colours used on topo map a) Blue,Red,Yellow,Brown,Green,White and black b) Orange,white and purple c) Sky blue,dark green and yellow d) White and black e) Brown and green 3) The topmost layer of atmosphere  a) Troposphere b) Stratosphere c) Thermosphere d) Mesosphere e) Exosphere 4) The solar energy reaches on the earth in the form of? a) Terrestrial radiation b) Solar radiation or insolation c) UV rays 5) Mesosphere lies above which layer a) Stratosphere b) Exosphere c) Thermosphere d) Troposphere

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