A. A fluorine compoune
B. A sulphur compound
C. A chlorine compound
D. None of these
Since a sphere has 360 degrees, the Earth is divided into 360 longitudes. The meridian opposite the Prime Meridian (on the other side of the Earth) is the 180° longitude and is known as the anti meridian.
A. Dwarf Planet
B. Gaseous Planets
C. Terrestrial Planets
D. Both A & B
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.
A. light waves only
B. sound waves only
C. Both Light waves and sound ways
D. None of these
An apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.
Hence, it is applicable for both sound and light waves.
When a patient’s immune system becomes reactive to a drug, this is an example of?
A. Super infection
B. Drug resistance
C. Allergy
D. none
A. Iodine
B. Potassium
C. Sodium Chloride
D. Chlorine