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Everyday Science Questions & Answers Section 12

This is the 12 section from Everyday Science. These questions and answers will be from Frequency, Vitamin B, Heart Beat, Electricity, Airport and Chemical.

Ques No.1: Mirage is an example of __________

Ans: Reflection of Light

Ques No.2: Frequency of audible sound is ____________.

Ans: 20-20,000 Hz

Ques No.3: The age of a tree can be determined by counting ____________

Ans: Rings of stem

Ques No.4: Deficiency of vitamin B causes _________.

Ans: Beriberi

Ques No.5: In a normal resting man, the rate of heart beat is _____________

Ans: 72 per minute

Ques No.6: Cheapest source of producing electricity is ________.

Ans: Water

Ques No.7: In Pakistan copper is found in_________

Ans: Saindak

Ques No.8: The smallest unit of measurement of wave-length is _________.

Ans: Angstrom

Ques No.9: __________ is the first winged space ship to orbit and return to airport landing.

Ans: American space shuttle Mercury Atlas-6

Ques No.10: The chemical generally used in refrigerator is ________.

Ans: Freon

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