Options:
- A. 1
- B. 2
- C. 3
- D. 4
View Answer
C. 3
Everyday Science
Who invented bifocal eyeglasses?
Options:
- A. Ibn-e-Haitem
- B. Benjamin Franklin
- C. Archemedes
- D. None
View Answer
B. Benjamin Franklin
The matter of our sun is in ________ state?
Options:
- A. Liquid
- B. Gas
- C. Solid
- D. Plasma
View Answer
D. Plasma
The hormone that increases the rate of heart beat and blood pressure after shock in a person is___________?
Options:
- A. Adrenalin
- B. Gastrin
- C. Thyroxin
- D. Pancreatic
View Answer
A. Adrenalin
Reptiles hibernate during_______?
Options:
- A. Summer
- B. Winter
- C. Spring
- D. Autumn
View Answer
B. Winter
How is ammonia synthesized?
Options:
- A. Herber process
- B. Regrigration process
- C. Contact process
- D. All of these
View Answer
A. Herber process
What is the one of the other name of Vitamin
Options:
- A. Riboflavin
- B. Ascorbic Acid
- C. Retinol
- D. Thiamin
View Answer
C. Retinol
The process of splitting water molecules in the presence of light energy is called_________?
Options:
- A. Electrolysis
- B. Photolysis
- C. Radiolysis
- D. Thermolysis
View Answer
B. Photolysis
Which of the following organisms releases molecular oxygen into water?
Options:
- A. E.coli
- B. Phytoplankton
- C. Amoeba
- D. Salmonella
View Answer
B. Phytoplankton
Earth is divided into following three layers?
Options:
View Answer
d. Crust, Mantel, Core