ge0g 103 Geol

If a stream drops 15 meters in 15 kilometers, what is its gradient?

1 meter per kilometer

This figure shows four numbered river terraces, with 1 being the highest and 4 being the lowest. Which is the youngest terrace?

4

Which principle of relative age dating can be used to determine when the river formed on the landscape?

Cross-cutting relations

Mid-ocean ridges form where two ocean plates:

Diverge.

Which of the following generally is true about caves formed by dissolution?

Groundwater removes material from limestone.

What happens when rocks oxidize near Earth's surface?

Minerals, especially those with iron, combine with oxygen.

Which of the following is true about the base level of a stream:

Most streams have lower gradient close to their base level.

What types of rocks would be most common in the small volcano in this photograph?

Scoria and other vesicular basalt

Comparing these two photographs, which eruption has lower viscosity magma?

The fluid cascade of lava has lower viscosity.

An oceanic transform plate boundary is most likely associated with:

a mid-ocean ridge.

A convergent plate boundary is most likely associated with:

an oceanic trench.

Which of the following plate boundaries is least likely to produce composite volcanoes?

continent-continent convergent boundary with a high mountain range (Himalayas)

The rain shadow effect is:

created by internal processes but affects external processes.

In metamorphism, after a rock is heated,

it may or may not be deformed and it may or may not develop a new texture.

The main difference between conglomerate and breccia is

the shape of the clasts.

The size of clasts that a stream can carry is primarily controlled by:

the velocity and turbulence of the current.