FREE EARTH SCIENCE AND STUDY GAMES ABOUT CH 18

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FREE EARTH SCIENCE AND STUDY GAMES ABOUT CH 18

VOCAB WORDS EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -11 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: vent

Answer:

opening in Earth's crust through which lava erupts and flows out onto the surface

Question 2: fissure

Answer:

long cracks on Earth

Question 3: caldera

Answer:

large crater, up to 50 km in diameter, that can form when the summit or side of a volcano collapses to the magma chamber during or after eruption

Question 4: cinder cone

Answer:

steep-sided, generally small volcano that is built by the accumulation of tephra around the vent

Question 5: conduit

Answer:

a tube like structure that allows lava to reach the surface

Question 6: shield volcano

Answer:

broad volcano with gently sloping sides build by nonexplosive eruptions of basaltic lava that accumulates in layers

Question 7: crater

Answer:

bowl-shaped depression that form around the central cent at the summit of a volcano

Question 8: hot spot

Answer:

unusually hot regions of Earth's mantle where high-temperature plumes of magma rise to the surface

Question 9: composite volcano

Answer:

generally cone-shaped with concave slopes; built by violent eruptions of volcanic fragments and lav that accumulate in alternating layers

Question 10: flood basalt

Answer:

form when lava flows out of long cracks in Earth's crust

Question 11: volcanism

Answer:

describes all the processes associated with the discharge of magma, hot fluids, and gases