Accessibility links
Skip to main content
Skip to main Navigation
Skip to Search
About Learning English
Beginning Level
Intermediate Level
Advanced Level
US History
Video
Follow Us
Languages
Search
Search
Previous
Next
Breaking News
Quiz - New Evidence for Large Ancient Ocean on Mars
November 04, 2022
Question 1 / 4
What was a main finding of the 2015 NASA study about ancient Mars?
It likely had a thicker atmosphere than today and severe volcanic activity.
It likely had an ocean covering nearly half of the northern hemisphere.
It likely contained different forms of life that disappeared over the years.
It likely had much more extreme climate across the northern hemisphere.
Submit Answer
Next Question
Quiz - New Evidence for Large Ancient Ocean on Mars
XS
SM
MD
LG