Earth & Space Exam Review

The law of cross-cutting relations states that any feature that cuts across a rock or sediment must be younger than the rock or sediment through which it cuts.

• TRUE
• FALSE

The law of superposition states that the youngest rock layers are at the bottom and the oldest are at the top.

• TRUE
• FALSE

Climate change is a gradual change rather than an abrupt occurrence.

• TRUE
• FALSE

Throughout Earth’s history, its climate has always been colder and less humid than it is today.

• TRUE
• FALSE

Weathering is the breaking down of larger materials into smaller ones.

• TRUE
• FALSE

The amount of sunlight on Earth is affected by cyclic variations in the Earth’s orbit around the Sun.

• TRUE
• FALSE

The planet wobbles on its axis of rotation.

• TRUE
• FALSE

The oldest rocks are found ________________ of a sequence.

• in the middle
• at the top
• at the bottom
• none of the above

If an igneous dike cuts across metamorphic rock layers,

• We know that the metamorphic rocks are older
• We know that the igneous rock dike is older
• We cannot know which formed first
• We know that they both formed at the same time

Which of the following is used to determine the relative ages of the rock?

• Cross-cutting relationships
• Superposition
• Fossils
• All of the Above