The mesosphere ranges from ________ to _________?
A. 46 km to 85 km B. 48 km to 85 km C. 50 km to 85 km D. 52 km to 85 km
Everyday Science MCQs
_________ is the layer wherein most meteors are incinerated before reaching the surface.
A. Troposphere B. Stratosphere C. Mesosphere D. Ionosphere
The thermosphere extends from an altitude of ________ to the base of ________ at ________?
A. 75 km, Mesosphere, 670 km B. 80 km, Ionosphere, 680 km C. 85 km, Exosphere, 690 km D. 90 km, Ozone Layer , 690 km
Atmosphere is held in place by?
A. Pressure of the planetary body B. Gravity of the planetary body C. Charge of the planetary body D. Heat of the planetary body
Which of the following is true about Ionosphere?
A. Its density is lesser at short distances from planetary surface in morning and further decreases as ionosphere rises at night-time, thereby allowing a greater range of radio frequencies to travel greater distances B. Its density is greater at short distances from tplanetary surface in daytime and decreases as ionosphere rises at night-time, thereby allowing … Read more
___________ begins at 690 to 1,000 km from the surface, and extends to roughly 10,000 km.
A. Troposphere B. Mesosphere C. Exosphere D. Stratosphere
Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________.
A. Mass of vertical column of atmospheric gases B. Mass of horizontal column of atmospheric gases C. Weight of vertical column of atmospheric gases D. Mass of vertical and weight of horizontal of atmospheric gases
The planet retains an atmosphere when?
A. Gravity is low and temperature of atmosphere is great B. Gravity and temperature both are great C. Gravity and temperature both are constant D. Gravity is great and temperature of atmosphere is low
Titan, a moon of __________ , and Triton, a moon of _________ , have atmospheres mainly of _________.
A. Saturn, Jupiter, Hydrogen B. Uranus, Neptune, Nitrogen C. Saturn, Neptune, Nitrogen D. Mars, Venus, Hydrogen
When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ?
A. These gases are not present B. These gases are like plasma C. These gases are frozen D. These gases are volatile