How are stalactites different from stalagmites? Why do they typically form in pairs and often merge to
form a column? What will be an ideal response?
Stalactites are dripstone formations shaped like icicles that hang from the roof of a cave. Stalagmites
are dripstone formations that project upward from the floor of a cave. They form in pairs because they
are from the same dripping source and the two may continue growing until they merge.
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In which of the following places does spring begin in the month of September?
A. Rome, Italy B. Peterborough, Ontario C. Rio de Janeiro, Brazil D. Los Angeles, California
Which of the following occurs when mountain belts are eroded?
A) Erosion is accompanied by isostatic rebound. B) The continental crust becomes thinner. C) Deep metamorphic and plutonic rocks can be uplifted to the surface. D) All of these are correct.
Recycled tantalum accounts for approximately ________ of its availability for use in manufacturing.
Fill in the blank(s) with the appropriate word(s)
How does fractional crystallization contribute to the formation of economically important metal ores?
What will be an ideal response?