Answer: Security Guard
Explanation: The security guard left last. You can see that this is true because the man and his dog's footprints are on top and the only prints that have not been disturbed by someone else.
Answer:
Continental shelf
Explanation:
The subdustion zones between the oceanic tectonic plates and continental tectonic plates go in both ways when it comes to the lithosphere. They are both destructive and constructive. With the subduction zone occurring, the crust from the oceanic plate gets into the mantle, gets melted, and thus destroyed. On the other hand, this type of boundary enables the magma from the mantle to penetrate through the crust and reach the surface. As the magma reaches the surface, it starts to create volcanoes, be it in the form of island arcs or continental arcs. The volcanoes then release lot of lava from them on the surface, and this lava cools off and creates new layers of rock. The uplifting volcanoes, as well as the push of the plate that subducts, results in creating a shellow and relatively flat part of the ocean which is alongside the coastline. This shallow and flat part of the ocean is known as continental shelf. The continental shelf is the part of the ocean that has the warmest water, the light penetrates through all of its waters, and it is the most abundant in life. It depth is relatively small.
<span>They are associated with continental shelves. These shelves are found on the shores of continents where most oil reservoirs, mineral deposits and natural gases are found. The shelves are covered by the sea or ocean, but they are more shallow than the open sea.</span>
