Question

which of the following best describes the process of hydration?
a) water breaks existing bonds among elements in the minerals that make up a rock.
b) water bonds with elements in the minerals that make up a rock, forming new substances.
c) water transports weathered sediment from one place and deposits it in another.
d) water moving through soil carries away important nutrients.
question 19 (5 points)
a ____ is a speleothem that forms on the ceiling of a cavern and resembles an icicle made of rock.
a) stalagmite
b) limestone
c) stalactite

Explanation:

Hydration is a chemical - weathering process where water combines with elements in minerals of a rock to form new substances. A stalactite is a speleothem that forms on the ceiling of a cavern and looks like a rock icicle. Stalagmites form on the floor, limestone is a type of rock, not a speleothem shape.

Answer:

1. B. Water bonds with elements in the minerals that make up a rock, forming new substances.
2. C. stalactite