Ques No.1: Oil rises in a wick of oil lamp because of a property of matter, called _________.
Ans: Capillary action
Ques No.2: _________ is not used for rice crop.
Ans: Ammonium nitrate
Ques No.3: Beri Beri is the disease which is caused by the deficiency of _________.
Ans: vitamin B1
Ques No.4: The three elements needed for healthy growth of plants are _________
Ans: N (nitrogen), P (phosphorus) and K(potassium)
Ques No.5: _________ is the branch of zoology which deals with the study of insects.
Ques No.6: Muslim scientist Ail al Tabari is famous for his work on _________.
Ans: Firdous al-Hikmah
Ques No.7: The __________ are responsible for proteins synthesis in the human body.
Ans: nucleic acids
Ques No.8: A ________ is a unit of distance.
Ans: light year
Ques No.9: A convex lens is used for the correction of the __________.
Ques No.10: Muscle stiffness is called by a disease called _______.