When sugar is added to water, its boiling point:__________?
A. Increase B. Decrease C. Remain unchanged D. None of the above
Highly intelligent Mammals are_________?
A. rat B. dolphin C. bat D. Elephant
For galvanizing of iron which of the following metals is used ?
A. Alu minimum B. Copper C. Zinc D. Lead
Which of the following is the lightest substance?
A. Uranium B. Hydrogen C. Oxygen D. Nitrogen
___________ is a mammal who fly?
A. Ostrich B. Bat C. Peacock D. None of these
Which of these is NOT a form of energy?
A. Heat B. Light C. Temperature D. Electricity
Which of these is NOT an example of a renewable energy source?
A. Wind energy B. solar C. Coal D. Hydroelectric power
For the generation of biogas, the materials commonly used are__________?
A. Animal wastes B. Forest residues C. Aquatic plants D. None of these
Who discovered that the earth was not the center of the universe?
A. Aristotle B. Nicolaus Copernicus C. Sir Isac Newton D. None
Vitamin C is essential for___________?
A. Appetite B. Growth & repairing of tissues C. Muscles D. Brain