Changing Earth 2

The earth's surface is constantly changing due to weathering, erosion, deposition, the rock cycle, plate tectonics, thermal energy, and human activity.

• true

• false

Which is when rock is broken down by the actions of wind, running water, waves, ice, glacier, plant roots and other actions, but does not become new substances?

• chemical weathering

• physical weathering

Which is when rock is broken down by a chemical reaction, and new substances are formed?

• chemical weathering

• physical weathering

• mechanical weathering

What is when materials can be moved by water, wind, and gravity?

• carbonic acid

• plate tectonics

• erosion

• chemical weathering

Materials that can be moved or eroded by water, wind, and gravity and then deposited in new locations as sediment is called _______________________________.

• deposition

• chemical weathering

• physical weathering

• rock cycle

Which is not an example of a landform

• u-shaped valleys formed by glaciers

• mountain passes formed by wind

• canyons formed by flowing rivers

• plateaus formed by flowing lakes

Which is the outermost and thinnest layer and the part of the earth on which life mainly occurs?

• crust

• mantle

• outer core

• inner core

What is composed mostly of molten rock?

• crust

• mantle

• outer core

• inner core

Which is composed mostly of iron and nickel, and is believed to be liquid due to extreme temperatures?

• crust

• mantle

• outer core

• inner core

What is composed mostly of iron and some nickel and is believed to be solid due to extreme temperature and pressure?

• crust

• mantle

• outer core

• inner core