Answer:
Evaporator coils are more difficult to leak search because the are cased and difficult to access. However, like the condenser coil there is a quick way to determine if there is a leak in the evaporator coil. Cut or locate an opening in the condensation drain that is below the coil.
Explanation:
A because it gives historical details
A is correct...
hope helps
Answer:
The crust and outer part of the mantle.
Explanation:
The crust and outer part of the mantle are the two top-most layers of Earth. The lithosphere is comprised of these two. Here's a picture for an example.