Ask a quwhich layers of earth are considered liquid? select all that apply.
a. crust
b. inner core
c. outer core
d. lower mantle
estion here.

The crust is not liquid: the  crust is what we walk on, so we know that it's not liguid.

The inner core is not liquid (too much pressure), but the outter core is liquid - this is one of the correct answers.

The mantle is also fluid, depending on the interpretation (its so-called viscous fluid)

The enviroment with hedge hogs

Answer primary waves;