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Question

Before a volcanic eruption, seismic activity seems to

a. increase in frequency and decrease in intensity.

b. decrease in both frequency and intensity.

c. decrease in frequency and increase in intensity.

d. increase in both frequency and intensity.

Which of the following is most likely to occur when pesticides and fertilizers seep into soil?

a.excessive erosion c.acid rain formation

b.severe drought d.groundwater contamination

The substance that forms cone-shaped cavern features is

a.calcite. c.geyserite.

b.magnesium. d.iron.

What happens when a plate with oceanic crust meets a plate with continental crust?

a.The continental plate is subducted.

c.The oceanic plate is subducted.

b.New crust forms over a hot spot.

d.New crust forms under a hot spot.

Pillow lava is most commonly found

a. in calderas. c. in stratovolcanoes.

b. along deep trenches. d. along mid-o

Answer 1

Before a volcanic eruption, seismic activity seems to

d. increase in both frequency and intensity.

Which of the following is most likely to occur when pesticides and fertilizers seep into soil?

d.groundwater contamination

The substance that forms cone-shaped cavern features is

a.calcite. .

What happens when a plate with oceanic crust meets a plate with continental crust?

c.The oceanic plate is subducted.

Pillow lava is most commonly found

d. along mid-o