earth systems midterm review

Front

The average distance between the Earth and the sun is a(n) ____.

Back

astronomical unit

Front

What is the principle of original horizontality in geology?

Back

Sedimentary rocks are originally deposited in horizontal layers.

Front

Which rock type is formed by the accumulation and compression of sediments?

Back

Sedimentary

Front

What process turns sediment into sedimentary rock?

Back

Compaction and cementation

Front

Which of the following most likely causes Earth's inner core to be solid?

Back

High pressure at the center of the Earth increases the melting point of iron and nickel.

Front

What is the definition of a light year?

Back

The distance that light travels in one year, approximately 5.88 trillion miles.

Front

What are the three main types of rocks?

Back

Igneous, Sedimentary, Metamorphic.

Front

What is the rock cycle?

Back

The continuous process of rock formation and transformation between igneous, sedimentary, and metamorphic rocks.

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breakdown of rocks, while erosion is the movement of those broken materials.