Options:
- A. copper,nickel
- B. copper, tin
- C. copper, silver
- D. copper, zinc
View Answer
B. copper, tin
Everyday Science
Which triplet in DNA codes for valine ?
Options:
- A. CTT
- B. AGU
- C. CAT
- D. AAT
View Answer
E. None of these
The most splendid and the most magnificent constellation on the sky is?
Options:
- A. Orion
- B. Columbia
- C. Canis Major
- D. Taurus
View Answer
A. Orion
Ozone layer prevents ______________ radiation from entering the atmosphere?
Options:
- A. Infra-red
- B. Ultraviolet
- C. X-rays
- D. Gamma rays
View Answer
B. Ultraviolet
In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?
Options:
- A. Chemical Reaction
- B. Nuclear reaction
- C. Fission nuclear reaction
- D. Fusion nuclear reaction
View Answer
D. Fusion nuclear reaction
Total volume of blood in a normal adult human being is
Options:
- A. 5-6 liters
- B. 3-4 liters
- C. 8-10 liters
- D. 10-12 liters
View Answer
A. 5-6 liters
A person with which of the following blood groups can receive blood of any group?
Options:
- A. A
- B. AB
- C. B
- D. O
View Answer
B. AB
The sun appears red at sunrise and sunset while it appears white at noon, because
Options:
- A. Of refraction
- B. It is cooler at sunrise and at sunset
- C. Of diffraction leading to red end of the spectrum reaching the earth.
- D. Of Scattering of light due to dust particles and air molecules.
View Answer
D. Of Scattering of light due to dust particles and air molecules.
In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as____________?
Options:
- A. Electroplating
- B. Annealing
- C. Galvanization
- D. Vulcanization
View Answer
C. Galvanization
The SI unit of
Options:
- A. pascal
- B. joule
- C. tesla
- D. henry
View Answer
A. pascal