Constructive forces _____.

build new land

tear down land

are not beneficial

destroy the earth's crust

---



The Hawaiian Islands were formed by what?

erosion

folding

faulting

volcanoes

--



A dome mountain forms when _____.

the earth's crust is folded

blocks of rock crack

crustal plates move away from each other

magma pushes the earth's crust upward


----




Choose all the answers that apply.


Which of the following landforms are created by erosion?

sandbar

island

sand dune

beach

delta

---



A delta forms when _____.

a volcano erupt underwater

eroded sediment is deposited at a river mouth

ocean waves carry away sand and rock pieces

blocks of broken rock are lifted over one another


--------




What happens at subduction zones?

sediment is deposited by ocean waves

new land is formed from eroded soil

an oceanic plate sinks below a continental plate

two crustal plates move away from one another



----------




Which of the following statements is true?

Mountains form when two continental plates move away from each other.

New oceanic crust is formed by magma filling spaces at mid-ocean ridges.

A loess is an area of nutrient-poor soil caused by erosion.

"Hot spots" are locations where the earth's crust is very thick.


------

Verified Answer :

b22651
  1. Build new land
    2. Volcanoes 
    3. magma pushes the earth's crust upward
    4.?
    5.
    eroded sediment is deposited at a river mouth
    6.
    an oceanic plate sinks below a continental plate
    7.?

Answer:

1- Option A

2- Option D

3- Option D

4- Option D

5- Option B

6- Option C

7- Option B

Explanation:

Constructive forces are the forces that add new landmass on earth. They are typically formed by events such as volcanic eruptions, sediment deposition, and distortion in the crust.

The Hawaiian volcanic islands were formed due to the subduction of the Pacific plate under the NorthAmerican plate.

A dome generally forms when the magma rises up towards the surface. This hot magma lifts the land area, and subsequently with time, the magma cools and solidifies before eruption, giving rise to the formation of domes.

Beaches are formed due to the continuous erosion of the coastal rocks by the sea waves. Waves also carry sediments from the oceans to the coastal beach but it mainly erodes the rocks and sediment particles that are present on the beach area.

When sediment particles are carried by the rivers and streams and are deposited at the mouth of the river, then a delta is formed.

When an oceanic plate collides with a continental plate, then the denser oceanic plate gets subducted beneath the continental plate and forms a region of subduction where at great depth partial melting of the subducting plate takes place.

Along the mid-oceanic ridge, new crusts are added because the hot magma comes out to the surface and solidifies. This are rocks that are basaltic in nature.