Options:
- A. Stars
- B. Galaxy
- C. Moon
- D. Planets.
View Answer
C. Moon
Everyday Science
Heavy mechanical complex use a large amount of water for_________?
Options:
- A. Cooling
- B. Freezing
- C. Washing
- D. Mixing
View Answer
A. Cooling
Which of the following is the major constituents of LPG?
Options:
- A. methane
- B. ethane
- C. hydrogen
- D. butane
View Answer
D. butane
Deforestation will decrease?
Options:
- A. Soil erosion
- B. Rainfall
- C. Landslides
- D. Soil fertility
View Answer
B. Rainfall
The frequency of a turning fork determined by a:
Options:
- A. Magnetic tape
- B. Modulator
- C. Sonometer
- D. Reed instrument
View Answer
C. Sonometer
Atmospheric pressure decrease rapidly with altitude because the air becomes_______ ?
Options:
- A. Colder
- B. Less denser
- C. Rich in Ozone
- D. Warmer
View Answer
B. Less denser
Unit of surface tension in cgs system is?
Options:
- A. Pascal
- B. N/m
- C. Dyn/cm
- D. None of these
View Answer
C. Dyn/cm
Cooking gas is mixture of which two gases?
Options:
- A. Hydrogen and oxygen
- B. Methane and CO2
- C. Methane and oxygen
- D. None of these
View Answer
C. Methane and oxygen
Sodium Carbonate is commonly called ________?
Options:
- A. Plaster of Paris
- B. Washing Soda
- C. Common Salt
- D. None of these
View Answer
B. Washing Soda
The unit to measure the quantity of Ozone in atmosphere is ?
Options:
- A. Dobson
- B. Cloning
- C. Dalton
- D. Colomb
View Answer
A. Dobson