Question

graded quiz: surface processes on earth
0:00:58 elapsed
question 1 (5 points)
the weathering of rock caused by salt is
a) oxidation.
b) abrasion.
c) haloclasty.
d) carbonation.
question 2 (5 points)
the chemicals used on farms, golf courses, and domestic gardens are often to blame when groundwater becomes contaminated with
a) sewage.
b) fuel.
c) nitrates.
d) acid.

Explanation:

For Question 1, haloclasty is the weathering of rock due to salt. Oxidation involves oxygen - related reactions, abrasion is mechanical wearing by friction, and carbonation involves carbon - containing compounds.
For Question 2, chemicals used on farms etc. often contain nitrates which can contaminate groundwater. Sewage is waste from households, fuel is for energy - related uses, and acid is a different type of chemical not typically associated with these sources in this context.

Answer:

Question 1: C. haloclasty
Question 2: C. nitrates