Final Review 2021 Question Preview (ID: 56578)
Final Review 2021.
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Most astronomers agree that at the present time universe is
a) contracting
b) expanding
c) staying the same size
d) expanding and contracting regularly
Spica has a surface temperature of about (Page 15 ESRT)
a) 10,000 K
b) 15,000 K
c) 20,000 K
d) 25,000 K
Compared to the Sun a Giant star is (Page 15 ESRT)
a) hotter and smaller
b) hotter and larger
c) cooler and brighter
d) warmer and brighter
Which star has the lowest luminosity? (Page 15 ESRT)
a) Barnard's star
b) Rigel
c) Proxima Centauri
d) Deneb
Which planet has the lowest average density? (Page 15 ESRT)
a) Jupiter
b) Mars
c) Earth
d) Venus
What is the temperature at the Stratopause? (Page 14 ESRT)
a) -55°C
b) 0°C
c) 15°C
d) -90°C
What is the approximate altitude of the Tropopause in the atmosphere? (Page 14 ESRT)
a) 50 miles
b) 50 km
c) 12 km
d) 12 miles
Which part of Earth's interior is inferred to have convection currents that cause tectonic plates to move? (Page 10 ESRT)
a) rigid mantle
b) asthenosphere
c) outer core
d) inner core
The density and composition of Earth's oceanic crust is (Page 10 ESRT)
a) 2.7 g/cm3 and basaltic
b) 3.0 g/cm3 and granitic
c) 3.0 g/cm3 and basaltic
d) 2.7 g/cm3 and granitic
Which layer of Earth's interior has a density range of 3.4 to 5.6 g/cm3? (Page 10 ESRT)
a) continental crust
b) stiffer mantle
c) outer core
d) inner core
From a depth of 2000 km, what is the pressure in million atmospheres? (Page 10 ESRT)
a) 0.2
b) 0.8
c) 1.6
d) 2.3
From a depth of 4000 km, what is the temperature? (Page 10 ESRT)
a) 1800°C
b) 4200°C
c) 5700°C
d) 6300°C
Which mineral is commonly used as food additive? (Page 16 ESRT)
a) Galena
b) Dolomite
c) Calcite
d) Halite
The San Andreas Fault marks the boundary between the (Page 5 ESRT)
a) Nazca Plate and the South American Plate
b) Pacific Plate and the Philippine Plate
c) North American Plate and the Pacific Plate
d) Caribbean Plate and the Scotia Plate
Which metamorphic rock is the low grade metamorphism of Shale? (Page 7 ESRT)
a) Hornfels
b) Gneiss
c) Schist
d) Slate
Weathering and erosion of rocks turns them into (Page 6 ESRT)
a) magma
b) sediments
c) metamorphic rock
d) Igneous rock
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