Browse topic-based General Science practice sets.
2333 practice sets · Page 114 of 117
When climbing a high mountain, you get out of breath easily because ................
the percentage of oxygen in the air decreases
the air is more dense
there is less oxygen in each cubic meter of air
air pressure is greater
The four factors that are totally responsible forwind are:
the pressure gradient force, the Coriolis force, the centripetal acceleration, moisture content.
the centripetal acceleration, moisture content, friction, Coriolis force.
friction, centripetal acceleration, pressure gradient force, moisture content.
the Coriolis force, friction, the centripetal acceleration, the pressure gradient force.
The pressure gradient force is proportional to:
the slope of the isobars.
the change in temperature expressed in Kelvin degrees.
the change in air density.
the speed necessary to achieve hydrostatic equilibrium.
Instruments used to measure air pressure are called ................
thermometers
hygrometers
hydrometers
barometers
The four layers of the atmosphere from the top down are:
thermosphere, stratosphere, mesosphere, troposphere.
thermosphere, mesosphere, stratosphere, troposphere.
stratosphere, mesosphere, thermosphere, troposphere.
troposphere, stratosphere, mesosphere, thermosphere.
Which layer of the atmosphere protects Earth surface from being hit by most meteoroids?
troposphere
stratosphere
mesosphere
thermosphere
The layer of our atmosphere in which weather occurs is the ................
troposphere
stratosphere
mesosphere
exosphere
Most of the clouds are formed in the:
troposphere.
mesosphere.
stratosphere.
thermosphere.
Relatively speaking, the earths atmosphere is:
very thin when compared to the earths diameter.
very thick when compared to the earths diameter.
stops when we reach space.
stops at the top of the troposphere.
Most of the energy that heats Earth atmosphere is ................
visible light
ultraviolet light
blue light
infrared radiation
The ozone layer protects living things on Earth from ................
visible light
infrared rays
ultraviolet radiation
carbon dioxide
Convection takes place because ................
warm air is more dense than humid air
warm and cold air have the same density
cold air is less dense than warm air
cold air is more dense than warm air
Photochemical smog results from the interaction of pollutants in the presence of ................
water vapor
oxygen
sunlight
rainfall
Choose the correct listing of radiation from the longest wavelengths to the shortest wavelengths:
x-rays, ultraviolet, infrared, gamma rays, visible, radio.
radio, infrared, visible, ultraviolet, x-rays, gamma rays.
gamma rays, radio, ultraviolet, infrared, visible, x-rays.
radio, gamma rays, ultraviolet, visible, infrared, x-rays.
About how many light years across is the Milky Way?
1,000
10,000
100,000
1000,000
The Andromeda Galaxy is which of the following types of galaxies?
elliptical
spiral
barred-spiral
irregular
The sunspot cycle is
3 years
7 years
11 years
14 years
Which one best represents the time it takes energy generated in the core of the sun to reach the surface of the sun and be radiated?
Three minutes
Thirty days
One thousand years
One million years
The time interval between two successive occurrences of a specific type of alignment of a planet (or the moon) with the sun and the earth is referred to as
a conjunction
an opposition
a sidereal period
a synodic period
One Jupiter day is equal to which of the following?
8 hrs 40 min
9 hrs 50 min
10 hrs 30 min
12 hrs 10 min
