________ is a type of basaltic lava flow that has its surface covered with sharp-edged, angular blocks and rubble
A) Aa
B) Tephra
C) Pahoehoe
D) Pillow lava
Answer: A
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What will be an ideal response?
Volcanoes with broad bases and gentle slopes are called:
a) Shield volcanoes b) Stratovolcanoes (or composite cones) c) Cinder cones (or scoria cones) d) Mud volcanoes e) Lava domes
Coarse sand grains deposited across the landscape in an amorphous sheet is known as a ________
A) gibber plain B) sandplain C) wadi D) ventifact E) sand dune
This globe from the atmospheric moisture investigation shows specific humidity, with blue and green being highest. Which of the following parts of Africa has the lowest specific humidity?
A) The northern part
B) Along the equator
C) Along the entire east coast of the continent
D) Along the entire west coast of the continent