Unit 3 Review

Why does the oceanic plate sink under the continental

• continental is more dense

• oceanic is more dense

• they have equal density

• neither sinks they crash and form mountains

Answer explanation

The oceanic plate sinks under the continental because it is more dense.

Tags

NGSS.MS-ESS2-2

Plates move because of _______________

• Conventional currents

• water under the crust pushes it

• convection currents

• wind pushes them

Answer explanation

Plates move because of convection currents, which are caused by the heat from the Earth's core creating movement in the mantle.

Tags

NGSS.MS-ESS2-3

The outer layer of the earth is called?

• Inner Core

• Mantle

• Outer core

• Crust

Answer explanation

The outer layer of the earth is called the crust, which is the correct choice.

The liquid metal layer of the Earth is called?

• Crust

• Mantle

• Outer core

• Inner core

Answer explanation

The liquid metal layer of the Earth is called the outer core, which is located beneath the mantle and above the inner core.

Convection Currents occur in which layer of the Earth?

• Crust

• Outer Core

• Mantle

• Inner Core

Answer explanation

Convection currents occur in the mantle, which is the correct layer of the Earth.

Tags

NGSS.MS-ESS2-1

What Geological landform occurs at this type of plate boundary located in the picture below?

• volcanoes

• mid-ocean ridge

• deep sea trenches

• deep earthquakes

Answer explanation

At this type of plate boundary, a mid-ocean ridge occurs, as shown in the picture.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which of the boundaries form a rift valley, a mid-ocean ridge, and volcanoes?

• Convergent

• Divergent

• Subduction

• Transform

Answer explanation

Divergent boundaries form rift valleys, mid-ocean ridges, and volcanoes by pulling apart and creating new crust.

Tags

NGSS.MS-ESS2-3

What occurs at a Subduction Zone

• The Continental Crust sinks beneath the Oceanic Crust because it is less dense

• The Oceanic Crust sinks beneath the Continental Crust because it is less dense

• The Continental Crust sinks beneath the Oceanic Crust because it is more dense

• The Oceanic Crust sinks beneath the Continental Crust because it is More dense

Answer explanation

At a subduction zone, the Oceanic Crust sinks beneath the Continental Crust because it is more dense.

Tags

NGSS.MS-ESS2-2

At which boundary are non-volcanic mountains (such as the Himalayas) formed?

• Divergent plate boundary

• Transform Plate boundary

• Convergent Plate Boundary

Answer explanation

Non-volcanic mountains like the Himalayas are formed at Convergent Plate Boundaries where tectonic plates collide and push up the Earth's crust.

Tags

NGSS.MS-ESS2-2

B represents

• Lithosphere

• Asthenosphere

• Core

Answer explanation

B represents the asthenosphere, which is the semi-fluid layer of the Earth's mantle beneath the lithosphere.