Question

using space probes, scientists have observed jupiters moon europa. the table summarizes information gathered by the probes. characteristics of europa
characteristic data
diameter 3,138 km
mass 4.80×10^{22} kg
distance to sun 778,727,765 km
surface temperature - 145 °c
surface composition thick ice over a vast ocean
atmospheric pressure at surface less than.01 psi
composition of atmosphere trace amounts of oxygen
the data is approximate.
which characteristic would best support the possibility of life existing on europa?
a. europas mass is about 4.80×10^{22} kg
b. europas surface temperature is - 145 °c
c europas surface is composed of thick ice over a vast ocean.
d. europas atmospheric pressure at surface is less than.01 psi.

Explanation:

Water is considered a key - ingredient for life. The presence of a vast ocean under a thick ice layer on Europa suggests the potential for liquid water, which could support life. Mass, surface temperature, and low atmospheric pressure are less directly related to the possibility of life compared to the presence of water.

Answer:

C. Europa's surface is composed of thick ice over a vast ocean.