Everyday Science
The gas which is responsible to stop ultraviolet radiation coming from the sun is:
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Quick energy source?
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The main cause of air pollution is __________?
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Metal of hope _________
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The lens in the human eye is:
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X-rays were discovered by__________?
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The most distant human-made object sent into space is?
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Hepatitis A is transmitted to different individuals by.
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Stripes on each side of “Grévy’s Zebra” is about_________?
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