Why do you think liquid water didn’t cause the channel on mars?

On the surface of Mars, the low pressure that results from the planet's lack of a substantial atmosphere makes liquid water impossible. ... Although this far beneath the surface there might be a small amount of heat from the interior of Mars, this alone would not be enough to melt the ice into water.

a. i. only is correct.

the part i "agree with' is " it should not matter what color their skin is or what their cultural beliefs are." but for the main part i agree with it all or if cause now and days there are some people don't get the job cause there skin color and there beliefs and some times they don't even get the same repest as white people. we are all equal.