Question

What is the reason that the planets Jupiter, Saturn, Uranus, and Neptune have an UNKNOWN surface pressure?

a) They have no atmosphere to measure.
b) The pressure is too high to measure accurately.
c) They lack a solid surface to have surface pressure.
d) The instruments used for measurement are insufficient.

Answer 1

Jupiter, Saturn, Uranus, and Neptune have an UNKNOWN surface pressure because they lack a solid surface to have surface pressure.

Step-by-step explanation:

The reason that the planets Jupiter, Saturn, Uranus, and Neptune have an UNKNOWN surface pressure is because they lack a solid surface to have surface pressure. These planets are composed primarily of lighter ices, liquids, and gases, and do not have solid surfaces on which future explorers could land. Instead, they are more like vast, spherical oceans with much smaller, dense cores.