A river starts as a steep channel in the mountains. It then leaves the mountains and enters a flatter area of land. It meanders across a plain and then enters the ocean. Which of the following actions causes the deposition of sand at the delta?

• river water slowing as it enters the ocean

• salt water and fresh water mixing together

• ocean waves transporting sand toward land

• ocean water slowing as it reaches the coast

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What can cause granite to break down into soil over time?

• rain and wind

• sand deposition

• heat from magma

• pressure underground

Tags

NGSS.MS-ESS2-2

Which number representing the average pH level of acid rain, would have the highest rate of chemical weathering?

• 5.25

• 5.10

• 4.75

• 4.5

• 5.75

Tags

NGSS.MS-PS1-2

Canyons, cavers, channels, and valleys all form because of erosion by water. Which landform listed is mainly formed because of erosion by groundwater?

• a broad valley

• a narrow canyon

• a human-made channel

• an underground cavern

What would happen when the slope of the (stream table) tray increased?

• The speed of the water and the amount of erosion would increase.

• The speed of the water and the amount of erosion would decrease.

• The speed of the water would increase, while the amount of erosion would decrease.

• The speed of the water would decrease, while the amount of erosion would increase.

Tags

NGSS.MS-ESS2-4

Which of the following is the source of humus found in soil?

• bedrock

• B horizon

• parent rock

• plants and animals

Tags

NGSS.MS-LS2-3

Which is an example of abrasion of a rock?

• a color change due to exposure to air

• a shape change due to exposure to wind

• a hole forming due to a reaction with water

• a layer falling off due to a leasing of pressure

Tags

NGSS.MS-ESS2-2

What is the composition of Earth's atmosphere?

• 78% nitrogen and 22% water vapor

• 78% oxygen and 22% carbon dioxide

• 78% nitrogen, 21% oxygen, and 1% other gases

• 78% oxygen, 21% carbon dioxide, and 1% other gases

In places where there is loose sediment and strong wind, the wind can pick up the sediment and carry it. When the wind slows, it deposits the sediment. Which type of sediment will be dropped first as the wind slows?

• the biggest

• the lightest

• the smallest

• the heaviest

What is the order of the layers of the geosphere when starting from Earth's center and moving outward?

• core, crust, mantle

• core, mantle, crust

• mantle, core, atmosphere

• atmosphere, crust, mantle