Pluto's Bulk Density Is:
A) $3,400 \mathrm {~kg} / \mathrm { m } ^ { 3 }$

Multiple Choice

Pluto's bulk density is:

A) $3,400 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ , omparable to our Moon's.
B) $2,100 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ , similar to Callisto's mix of rock and ice.
C) $1,200 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ like Mimas, made of almost pure ice.
D) $700 \mathrm {~kg} / \mathrm { m } ^ { 3 } ,$ ike Saturn a mix of hydrogen and helium slush.
E) $400 \mathrm {~kg} / \mathrm { m } ^ { 3 } \text {, }$ lie Comet Halley's nucleus, a ice ball with many gas pockets.