1)
crust
2)outer core3)troposphere4)hydrosphere
9.The pie graph below represents the composition, in percent by mass, of the chemical elements found in an Earth layer.
The composition of which Earth layer is represented by the pie graph?
1)
1.5 million atmospheres pressure and an interior temperature of
4950°C
2)1.5 million atmospheres pressure and an interior temperature
of 6200°C
3)3.1 million atmospheres pressure and an interior temperature
of 4950°C
4)3.1 million atmospheres pressure and an interior temperature
of 6200°C
10.What are the inferred pressure and temperature at the boundary of
Earth's stiffer mantle and outer core?
1)a decrease in the rate of rotation of Earth
2)
the gravitational pull on materials of varying densities
3)variations in heating by the Sun due to Earth's tilt
4)collisions with meteors and comets
11.What caused the interior of Earth to separate into layers?
1)1000°C and 0.5 million atmospheres
2)1000°C and 1.0 million atmospheres
3)
5000°C and 1.5 million atmospheres
4)5000°C and 3.0 million atmospheres
12.The inferred temperature and pressure of Earth's interior at a depth
of 3,000 kilometers are approximately
1)1000°C2)
2500°C
3)4500°C4)5000°C
13.The inferred temperature at the interface between the stiffer
mantle and the asthenosphere is closest to
1)density decreases and temperature decreases
2)density decreases and temperature increases
3)
density increases and temperature increases
4)density increases and temperature decreases
14.What happens to the density and temperature of rock within
Earth's interior as depth increases?
1)
core properties
2)atmospheric structure
3)asthenosphere location
4)continental-crust thickness
15.Geologists have used information about the composition of
meteorites to make inferences about Earth’s
1)The Earth is spherical.
2)Seismic waves tend to travel in curved paths.
3)The temperature of the Earth's interior decreases with depth.
4)
Different parts of the Earth's interior have different densities.
16.Which statement best explains why the direction of some seismic
waves changes sharply as the waves travel through the Earth?
1)solid all the way to the center of the inner core
2)solid, then liquid to the center of the inner core
3)
solid, then liquid, then solid again to the center of the inner core
4)solid, then liquid, then gaseous to the center of the inner core
17.From the top of the stiffer mantle to the center of Earth, the rock
material is inferred to be
1)
troposphere
2)stratosphere
3)mesosphere4)thermosphere
18.The greatest atmospheric pressure occurs in the
1)Air pressure rises with increasing altitude.
2)The dewpoint is too high in the other layers of the
atmosphere.
3)The other layers of the atmosphere are too cold to contain
water.
4)
The lowest 11 km of the atmosphere contains almost all of the
atmospheric water vapor.
19.Why do most clouds form in the troposphere?
1)
It is warmer at the top than at the bottom.
2)It is located 75 kilometers above sea level.
3)It has greater pressure at the top than at the bottom.
4)It absorbs large amounts of water vapor from the
troposphere.
20.Which statement best describes the stratosphere?
1)mesosphere2)thermosphere
3)troposphere4)
stratosphere
21.Ozone is concentrated in Earth's atmosphere at an altitude of 20 to
35 kilometers. Which atmospheric layer contains the greatest
concentration of ozone?