Today I was take the topic characteristics of sound and propagation of sound
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The ozone layer is a natural layer of gas in the upper atmosphere that protects humans and other living things from harmful ultraviolet (UV... -
MAR THEOPHILUS TROPHY 2019 Basketball is a team sport where two teams, usually consisting of five players on each team, play ... -
“One scientific invention can change the world forever!!” Inventions include things like- the steam engine, printing press, the computer,...
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