earth science long quiz

What is stress?

• the amount of force per unit area that is placed on an object.

• stress that pushes rock together.

• when parts of Earth’s crust rise to higher elevations.

• when parts of the crust sink to lower elevations.

What is compression?

• a break in a body of rock along which one block slides relative to another

• stress that pushes rock together.

• when parts of Earth’s crust rise to higher elevations.

• stress that occurs when forces act to squeeze an object

What is folding?

• a break in a body of rock along which one block slides relative to another

• the bending of rock layers due to stress

• when parts of Earth’s crust rise to higher elevations.

• stress that occurs when forces act to stretch an object

How do folds indicate that deformation has happened?

• Most rock layers start out as horizontal layers. Therefore, when scientists see a fold, they know that deformation has happened.

• Three of the most common types of folds are synclines, anticlines, and monoclines.

• In a syncline, the youngest rocks are on the inside of the fold.

• They don't.

How is the hanging wall different from the footwall?

• The hanging wall is above the footwall

• The footwall is above the hanging wall

How do strike-slip faults form?

• when rocks slide past each other horizontally.

• when rocks move apart

• when rocks collide

• when rocks sink into the earth

What kind of boundary have the Andes mountains

formed on?

• convergent

• divergent

• transform

• strike slip

Why are strike-slip faults common at transform boundaries?

• transform boundaries move past one another

• transform boundaries move apart from one another

• transform boundaries move towards each other

What kind of fault is this?

• normal

• strike slip

• abnormal

• down

What kind of fault is this?l

• Reverse

• Normal

• Up

• Earthquake