Convergent (destructive) boundary

Question 1

At a convergent (destructive) plate boundary, the plates are

Answer 1

moving towards each other

Question 2

What happens when Oceanic plate and continental plates meet:

Answer 2

The denser, heavier oceanic plate subducts under the lighter, less dense continental plate

Question 3

What forms after the subduction

Answer 3

This forms deep ocean trenches in the subduction zone

Question 4

Deep sea trenches are

Answer 4

long, narrow depressions in the ocean floor with depths of over 6km

Question 5

trenches are found adjacent to(close or near)

Answer 5

to land areas and associated with island arcs

The boundary between the Nazca plate and the South American plate is an example

Question 6

What tectonic hazards occur at this boundary

Answer 6

Both violent volcanic eruptions and earthquakes occur at this type of plate boundary

Question 7

What is the Benioff zone

Answer 7

The narrow area where earthquakes tend to occur in the subduction is known as the Benioff Zone

Question 8

Destructive plate boundary

When two oceanic plates meet:

Answer 8

The heavier of the two oceanic plates subduct, forming deep ocean trenches and island arcs

Island arcs are a series of volcanic islands, formed in an arc-shape, e.g. the Caribbean

Submarine volcanic eruptions, lead to crust building up and rising above sea level

Question 9

Oceanic and continental convergent plate boundaries are also responsible for

Answer 9

fold mountains

Question 10

characteristics of fold mountains

Answer 10

Fold mountains form the highest of the world’s mountain ranges

They are long, relatively narrow belts of mountains

The main fold range is made up of a series of smaller ranges