Question

1. the block diagram below shows the boundary between two tectonic plates.

(not drawn to scale)
which type of plate boundary is shown?
(1) divergent (2) transform (3) complex (4) convergent

1. the diagram below shows the interaction of two tectonic plates.

(not drawn to scale)
the type of plate boundary represented in the diagram most likely exists between the
(1) south american plate and the nazca plate
(2) antarctic plate and the african plate
(3) antarctic plate and the indian - australian plate
(4) south american plate and the african plate

Explanation:

Question 8

Step1: Recall plate boundary types

Divergent: plates move apart. Transform: plates slide past. Convergent: plates collide. Complex is not a main type.

Step2: Analyze diagram

Diagram shows oceanic crust subducting under continental crust, volcanic mountains, ocean trench—signs of collision (convergent).

Step1: Identify plate boundary type

Diagram shows oceanic - continental convergence (subduction, volcanic mountains, trench).

Step2: Analyze plate pairs

1. South American (continental) and Nazca (oceanic) plates: convergent (subduction, Andes formed).
2. Antarctic and African: divergent (mid - ocean ridge).
3. Antarctic and Indian - Australian: complex, not ocean - continental convergence.
4. South American and African: divergent (mid - ocean ridge).

Answer:

1. convergent

Question 9