This is the 167 section from Everyday Science. These questions and answers will be from Helium, Oxygen, Carbon Dioxide, Protein, Blood Cancer and Vitamin B5.
Ques No.1: The gases which are used by divers as an artificial atmosphere are _________.
Ans: helium and oxygen
Ques No.2: Lead ball falls through water more slowly than through air because of __________.
Ans: the viscous force in water
Ques No.3: Air contains volume of carbon dioxide approximately _______.
Ques No.4: _________ is the hardest material.
Ques No.5: Nitrogen occurs in plants and animals in the form of _______.
Ques No.6: _________ is a hereditary disease.
Ques No.7: The composition of oxygen in air is kept constant by the process of _________.
Ques No.8: _________ is a Blood Cancer.
Ques No.9: The volume percentage of nitrogen in air is ______.
Ques No.10: Vitamin B5 is called
Ans: Pantothenic acid
Everyday Science Questions & Answers Section 168
Everyday Science Questions & Answers Section 169
Everyday Science Questions & Answers Section 170
Everyday Science Questions & Answers Section 171
Everyday Science Questions & Answers Section 172