Ques No.1: ________ is used against moulds and fungi.
Ques No.2: Abu ail Sina born in ______.
Ques No.3: _________ is a hypothetical region of space having a gravitational pull so great that no mater or radiation can escape from it.
Ans: Black hole
Ques No.4: Al Beruni died in ________.
Ans: 1048 A.D
Ques No.5: Typhoid is caused by ___________.
Ans: Salmonella Typhosa
Ques No.6: Our eye is very sensitive to __________.
Ans: blue light
Ques No.7: Malaria is caused by _________.
Ques No.8: Ideally water can be used as a car fuel after __________.
Ques No.9: _________ is the rearing and breeding of birds.
Ques No.10: The speed of light is nearly ___________.
Ans: 300, 0000 km/sec