Which of the following describes how Marie Tharp and Bruce Heezen found evidence that led to the theory of plate tectonics? (1 point)

Question

Responses

They mapped the structures on the ocean floor using sonar rays to collect data.
They mapped the structures on the ocean floor using sonar rays to collect data.

They mapped the structures on the ocean floor using a video recording to collect data.
They mapped the structures on the ocean floor using a video recording to collect data.

They observed that the continents seem to fit together like a puzzle.
They observed that the continents seem to fit together like a puzzle.

They observed two tectonic plates moving away from each other.

Answer 1

They mapped the structures on the ocean floor using sonar rays to collect data.

Answer 2

What types of structures form at divergent boundaries? Select the two correct answers. (1 point)
Responses

Ridges
Ridges

Cracks
Cracks

Faults
Faults

Trenches
Trenches

Volcanoes

Answer 3

Ridges
Volcanoes

Answer 4

Why can volcanoes form at convergent boundaries? (1 point)
Responses

Due to plates smashing together, the crust cracks and starts falling apart.
Due to plates smashing together, the crust cracks and starts falling apart.

Due to plates smashing into each other, the crust folds upward.
Due to plates smashing into each other, the crust folds upward.

Due to subduction, a great height difference occurs on the sea floor.
Due to subduction, a great height difference occurs on the sea floor.

Due to subduction, magma shoots out of the crust.

Answer 5

Due to subduction, magma shoots out of the crust.

Answer 6

Question
Two plates slide past each other, causing the crust of each plate to start falling apart. Soon, a crack forms between the two plates.

Which type of boundary is the statement describing?

(1 point)
Responses

Convergent boundary
Convergent boundary

Divergent boundary
Divergent boundary

Transform boundary
Transform boundary

Trench boundary

Answer 7

Transform boundary