PlZ help me I am on a test

The lower mantle covers the region of earth from 2891-670 km depth, bounded below by the core and the D"-layer (spoken as D-double-prime) and above by the transition zone. The pressure and temperature ranges cover 23.83 GPa, 1950 K to 135.75 GPa, 3750 K.

Explanation:

i said so and wiki

said so hope it helps and HOW DO YOU HAVE THAT MUCH TIME ON EDGE!?!?!!? I CALL HAKS

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)