Problem 1
Which is erosion over a large, flat area? A. gully C. runoff B. rill D. sheet
Problem 2
Explain the difference between the vocabulary words in each of the following sets. $$ \text { channel-drainage basin } $$
Problem 2
Which is erosion where a rill becomes broader and deeper? A. gully C. runoff B. rill D. sheet
Problem 3
Which is the area of land from which a stream collects runoff? A. drainage basin C. runoff B. gully D. stream channel
Problem 3
Explain the difference between the vocabulary words in each of the following sets. $$ \text { aquifer-cave } $$
Problem 4
Which type of soil or rock allows water to pass through them? A. impermeable C. permeable B. nonporous D. underground
Problem 5
Explain the difference between the vocabulary words in each of the following sets. $$ \text { permeable-impermeable } $$
Problem 6
Which dissolves limestone to form caves? A. carbonic acid C. stalactites B. hydrochloric acid D. stalagmites
Problem 7
Explain the difference between the vocabulary words in each of the following sets. $$ \text { groundwater-water table } $$
Problem 7
Which forms on the ceilings of caves as water drips through cracks? A. aquifer C. stalactite B. geyser D. stalagmite
