7. If a hardboiled egg is cracked, the cracked egg shells could be an example of *
-the core
-tectonic plates
-the mantle
-the atmopshere

The tectonic plates.

Step-by-step explanation:

If you look at a diagram of Earth on Google, you'll see there's the crust, the mantle, the core...etc. If the tectonic plates are apart of the crust- which is the Earth's surface, then it's safe to assume the shell of the egg is the tectonic plates.