EH Investigation 5 Question Preview (ID: 48404)


Review For Igneous Rocks. TEACHERS: click here for quick copy question ID numbers.

How are igneous rocks formed?
a) from two or more rocks that have morphed together under intense pressure.
b) by slowly being deposited from dripping water on cave floors over time
c) by being deposited in layers from weathered rock material
d) from the cooling hardening of molten material

How are igneous rocks classified in general?
a) foliated and nonfoliated
b) intrusive and extrusive
c) organic and inorganic
d) basic and acidic

Why are the crystals of intrusive igneous rock typically larger than those of extrusive igneous rock?
a) because of a higher water content in the magma
b) because the temperatures of the magma are much lower
c) because the magma cools very quickly
d) because the magma cools much slower

Where are extrusive rock formed?
a) under Earth's mantle
b) under layers of ocean floor sedimentation
c) at the center of the Earth
d) at or near the Earth's surface

Molten rock that flows out onto the Earth's surface.
a) Magma
b) Lava
c) Sedimentary rock
d) Metamorphic rock

Earth's crust is broken into multiple
a) lithospheric plates
b) asthenosphere plates
c) crust plates
d) core plates

The layer in which convection currents drive plate movements
a) outer core
b) inner core
c) core
d) asthenosphere

Which type of crust is the thickest?
a) oceanic crust
b) continental crust
c) lithosphere crust
d) asthenosphere crust

Which part(s) of Earth make up the lithosphere?
a) Crust and all of the mantle
b) Lithosphere and asthenosphere
c) The middle mantle
d) Crust and upper layer of the mantle

Which parts(s) of Earth make up the asthenosphere?
a) Crust and all of the mantle
b) Lithosphere and asthenosphere
c) The middle mantle
d) Crust and upper layer of mantle

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