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JSS 1 Basic Science (1st, 2nd & 3rd Term) Basic Science

SPACE TRAVEL

MEANING OF SPACE TRAVEL The space outside the sun, earth, star is called outer space. Space travel is the travelling to the outer space beyond this earth. The space travellers are called astronaut. The earth is surrounded by a layer of air called atmosphere which can be divided into about 4 regions: Troposphere Stratosphere Lomosphere […]

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