Which of the following is called as Blue planet?
Which of the following is called as Blue planet?
A. Mercury
B. Earth
C. Venus
D. Neptune
A. Mercury
B. Earth
C. Venus
D. Neptune
A. Calcium
B. Chondroitin sulfate
C. Boron
D. phosphate
A. Mycology
B. Angiology
C. Hepatology
D. Otology
A. Sodium Carbonate
B. Alum
C. Potassium Permanganate
D. Lime
The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?
A. Conduction of heat upward from a hot surface
B. Convection from a hot surface
C. Absorption of infrared energy that has been radiated from the surface
D. Heat energy from the earth’s interior
A. fast
B. slow
C. equal to the velocity of light
D. with zero velocity
A. Magnetic tape
B. Modulator
C. Sonometer
D. Reed instrument