Ques No.1: ________ is the mineral of Aluminium.
Ques No.2: The variation of blood flow can be heard thorough _________.
Ques No.3: _________ is the important source of iron.
Ans: Haematite (a mineral)
Ques No.4: The ore of mercury metal is ________.
Ques No.5: _______ is not a Thermoplastic.
Ques No.6: The electrical device which converts sound energy into electrical energy is ________.
Ques No.7: Abu ail Sina, Al Beruni, Ibn Al Haisham belonged to which _______.
Ans: 10th century
Ques No.8: The instrument specially designed for recording earthquake waves is called ________.
Ques No.9: The composition of the mixture used for welding is ___________.
Ans: Copper Oxide and Aluminium
Ques No.10: The alloy consisting of metals copper, zinc and nickel is called ________
Ans: Paktong/Alpaca/Nickel Silver/German Silver