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Final Review 2021
Test Description: Final Review 2021
Instructions: Answer all questions to get your test result.
1) Most astronomers agree that at the present time universe is
A
staying the same size
B
expanding and contracting regularly
C
contracting
D
expanding
2) Spica has a surface temperature of about (Page 15 ESRT)
A
20,000 K
B
25,000 K
C
15,000 K
D
10,000 K
3) Compared to the Sun a Giant star is (Page 15 ESRT)
A
hotter and smaller
B
warmer and brighter
C
cooler and brighter
D
hotter and larger
4) Which star has the lowest luminosity? (Page 15 ESRT)
A
Rigel
B
Barnard's star
C
Deneb
D
Proxima Centauri
5) Which planet has the lowest average density? (Page 15 ESRT)
A
Mars
B
Venus
C
Jupiter
D
Earth
6) What is the temperature at the Stratopause? (Page 14 ESRT)
A
15°C
B
0°C
C
-90°C
D
-55°C
7) What is the approximate altitude of the Tropopause in the atmosphere? (Page 14 ESRT)
A
12 km
B
50 km
C
50 miles
D
12 miles
8) Which part of Earth's interior is inferred to have convection currents that cause tectonic plates to move? (Page 10 ESRT)
A
asthenosphere
B
outer core
C
inner core
D
rigid mantle
9) The density and composition of Earth's oceanic crust is (Page 10 ESRT)
A
3.0 g/cm3 and granitic
B
3.0 g/cm3 and basaltic
C
2.7 g/cm3 and basaltic
D
2.7 g/cm3 and granitic
10) Which layer of Earth's interior has a density range of 3.4 to 5.6 g/cm3? (Page 10 ESRT)
A
outer core
B
inner core
C
stiffer mantle
D
continental crust
11) From a depth of 2000 km, what is the pressure in million atmospheres? (Page 10 ESRT)
A
1.6
B
0.2
C
0.8
D
2.3
12) From a depth of 4000 km, what is the temperature? (Page 10 ESRT)
A
5700°C
B
1800°C
C
6300°C
D
4200°C
13) Which mineral is commonly used as food additive? (Page 16 ESRT)
A
Calcite
B
Galena
C
Dolomite
D
Halite
14) The San Andreas Fault marks the boundary between the (Page 5 ESRT)
A
Caribbean Plate and the Scotia Plate
B
Nazca Plate and the South American Plate
C
North American Plate and the Pacific Plate
D
Pacific Plate and the Philippine Plate
15) Which metamorphic rock is the low grade metamorphism of Shale? (Page 7 ESRT)
A
Slate
B
Schist
C
Gneiss
D
Hornfels
16) Weathering and erosion of rocks turns them into (Page 6 ESRT)
A
Igneous rock
B
magma
C
metamorphic rock
D
sediments
*select an answer for all questions
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