Where are we able to conduct research on earth that can us to learn more about and train for a mission to mars?

the moon is the best place to train astronauts for mars

Explanation:

The only place that would be suitable to train for mars would be the moon.

Explanation:

since we have made so many discoveries from the moon about the Earth, it would be the only reasonable place.  

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy

it's unlikely a majority of a large population would agree on issues

hope this : )