5. past how do you know did flowing water exist on antarctica in the distant ?

Yes

Explanation:

Using the most precise seafloor maps ever created of Antarctica's Ross Sea, researchers have discovered a long-dead river system that once flowed beneath Antarctica's ice and influenced how ice streams melted after Earth's last ice age.

APA

Chicago

Rice University. "Hidden river once flowed beneath Antarctic ice: Flowing water influenced retreat of ancient Antarctic ice sheet." ScienceDaily. ScienceDaily, 21 August 2017. <www.sciencedaily.com/releases/2017/08/170821183404.htm>.

answer; gender,race,age,/// (d) all of these;

answer; scientific method;