Question

1. oceanic - oceanic - strike slip (transform boundary)

a. describe the movement of the plates
b. which feature forms by this movement?

1. oceanic - continental - convergence

a. describe the movement of the plates
b. which feature forms by this movement?

1. oceanic - continental - strike slip (transform boundary)

a. describe the movement of the plates
b. which feature forms by this movement?

Explanation:

9.

a.

At an ocean - ocean strike - slip (transform) boundary, two oceanic plates slide horizontally past one another.

b.

Transform faults form at these boundaries. These are fractures in the Earth's crust where the plates move laterally relative to each other.

10.

a.

In an oceanic - continental convergence, the denser oceanic plate subducts beneath the less - dense continental plate. This is because the oceanic plate is made of denser basaltic rock compared to the continental plate's more granitic and less - dense rock.

b.

A deep - ocean trench forms where the oceanic plate begins to subduct, and on the continental side, volcanic arcs can form due to the melting of the subducted plate material which rises to the surface and causes volcanic activity.

11.

a.

At an oceanic - continental strike - slip (transform) boundary, the oceanic plate and the continental plate slide past each other horizontally. There is no subduction occurring in the traditional sense as in a convergent boundary; instead, it is a lateral movement of the plates.

b.

Fault zones and earthquakes are common features. The friction between the two plates as they slide past each other can cause stress to build up, which is released as earthquakes, and the movement creates fault zones.

Answer:

9.

a. Two oceanic plates slide horizontally past each other.

b. Transform faults.

10.

a. The denser oceanic plate subducts beneath the continental plate.

b. Deep - ocean trench and volcanic arcs.

11.

a. The oceanic and continental plates slide past each other horizontally.

b. Fault zones and earthquakes.