How does frontal lifting cause air to rise?
What will be an ideal response?
Frontal lifting causes air to rise when cool, dense air acts as a barrier, forcing warmer, less dense air up and over the cooler air mass.
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Which of the following can occur within a magma chamber?
a. sinking or floating crystals may change the composition of the remaining magma b. wall rocks can melt and become incorporated into the magma c. if two magmas mix, the resulting magma would be between the composition of the two d. all of these
Natural glass, such as obsidian, forms when magma:a
cools too rapidly for crystals to form. b. cools rapidly and very tiny crystals form. c. cools too slowly for crystals to form. d. doesn't cool. e. none of these.
In a partially mixed shallow estuary, the net seaward flow occurs at ________.
A. depth only B. all depths C. middle depths D. slack water only E. the surface only
At the mouth of a river, erosion is the dominant process.
a. true b. false