Question

2 the plates are found (4 points)

• at the core of the earth and under the oceans
• at the outer layer of the core
• at the earth’s outermost layer and under the oceans
• inside the mantle

3 a ________ boundary marks two plates that move apart from each other

• convergent

Explanation:

Question 2

To determine where the plates are found, we recall plate tectonics: Earth's lithospheric plates (tectonic plates) are part of the outermost layer (lithosphere, including crust and upper mantle) and also under oceans (oceanic plates). Let's analyze options:

• "at the core of the earth and under the oceans": Core is not where plates are, eliminate.
• "at the outer layer of the core": Core's outer layer is liquid metal, no plates, eliminate.
• "at the earth’s outermost layer and under the oceans": Matches lithospheric plates (outermost layer includes crust, and oceanic plates are under oceans), correct.
• "inside the mantle": Plates are on top of mantle (lithosphere - asthenosphere boundary), not inside mantle, eliminate.

In plate tectonics, a divergent boundary is where two tectonic plates move away from each other (e.g., mid - ocean ridges). Convergent is where they move toward each other, transform is sliding past. So for plates moving apart, it's a divergent boundary. (Assuming the options include "divergent" even if not fully shown, as per the context of "move apart".)

Answer:

at the earth’s outermost layer and under the oceans

Question 3 (assuming the options are divergent, convergent, transform; since plates moving apart is divergent)