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Everyday Science Questions & Answers Section 184

Ques No.1: The innermost part of bones contains what?

Ans: Bone marrow

Ques No.2: Mercury is extracted from __________.

Ans: Cinnabar

Ques No.3: What is the human body's biggest organ?

Ans: The skin

Ques No.4: __________ makes the blood look red.

Ans: Haemoglobin

Ques No.5: What substance are nails made of?

Ans: Keratin

Ques No.6: Steel is more elastic than rubber because ___________.

Ans: ratio of stress to strain is more

Ques No.7: True or false? The two chambers at the bottom of your heart are called ventricles.

Ans: True

Ques No.8: Sodium benzoate is used ____________.

Ans: for preservation of food grains

Ques No.9: The muscles found in the front of your thighs are known as what?

Ans: Quadriceps

Ques No.10: The first _________ in Pakistan was established at Karachi.

Ans: Nuclear power plant

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