The structural layer that the P- and S-wave low-velocity zone in ...

[OSWALD]

The structural layer that the P- and S-wave low-velocity zone in the upper part of the mantle closely
  corresponds to is the ___________________ _. Fill in the blank(s) with the appropriate word(s).

Question 2

The structural layer of Earth that is liquid is the ___________________ _ ___________________ _. Fill in the blank(s) with the appropriate word(s).

[Athena23]

Answer to Question 1

asthenosphere

Answer to Question 2

outer core

[OSWALD]

YES! Correct, THANKS for helping me on my review

[kishoreddi]

Thanks for the timely response, appreciate it