Ques No.1: Huge white ball in the sun almost consists of ________.
Ques No.2: It is possible to recognize a person in the dark by simply hearing hiss unique voice. It is because of the ______.
Ques No.3: All the plant life is based upon the compounds, which are made up of _________.
Ans: Oxygen, Carbon and Nitrogen
Ques No.4: The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________.
Ans: 56 ft
Ques No.5: World‘s largest flower auction is held in _______.
Ques No.6: In winter an iron pipe feel colder than a wooden window. This is because wood is ________.
Ques No.7: Carbon dioxide is used in the preparation of ________.
Ans: soft drinks
Ques No.8: Copper can be converted into gold by __________.
Ans: Artificial Radioactivity
Ques No.9: _______is the largest search engine of internet.
Ques No.10: Al-Qanoon is the famous book of Ibn-e-Sina in which human _________.
Ans: Physiology and medicine are discussed