Options:
- A. Lungs and heart
- B. Spleen and liver
- C. Kidneys and lungs
- D. Heart and brain
View Answer
B. Spleen and liver
Everyday Science
Sound of frequency below 20 Hz is:___________?
Options:
- A. Audiosonic
- B. Infrasonic
- C. Ultrasonic
- D. Supersonic
View Answer
B. Infrasonic
Most soluble in water is:__________?
Options:
- A. Camphor
- B. Sulphur
- C. Common salt
- D. Sugar
View Answer
D. Sugar
Medium sized kidney stones are removed by__________?
Options:
- A. Dialysis
- B. Lithotripsy
- C. Excretion
- D. Laser
View Answer
B. Lithotripsy
The size of Covid-19 virus is______?
Options:
- A. 25-30KB
- B. 28-30KB
- C. 29-30KB
- D. None of these
View Answer
C. 29-30KB
The main cause of floods in the river is__________?
Options:
- A. Heavy snowfall
- B. Earthquakes
- C. Deforestation
- D. Construction of dams
View Answer
C. Deforestation
Which one of the following non-metals is not a poor conductor of electricity?
Options:
- A. Sulphur
- B. Selenium
- C. Bromine
- D. Phosphorus
View Answer
B. Selenium
The only vitamin which can not be stored in human body?
Options:
- A. Vitamin C
- B. vitamin D
- C. vitamin K
- D. None of these
View Answer
A. Vitamin C
The M.K.S. system was first introduced by _________ ?
Options:
- A. Giorgi
- B. Archimedes
- C. Eienstein
- D. Newton
View Answer
A. Giorgi
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is ________ ?
Options:
- A. Argon
- B. Xenon
- C. Helium
- D. Krypton
View Answer
C. Helium