We learned about two of the characteristics that make Earth habitable:• liquid water• an energy source (such as the sun)In this lesson, you considered all the evidence about the channel on Mars. Based on what you’ve learned about this channel, do you think space agencies should continue to explore Mars for evidence of past habitability? Why or why not? Explain your thinking.

What does the word submerged mean in the following sentence? after it rained for three days in a row, the streets were completely submerged.

How has industrialization hurt the forest of europe

Which of the following would not be considered a geographic impact on the history of middle and south america? a. the relative geographic isolation of the americas meant that they would be more susceptible to european diseases. b. ernesto “che” guevara's trip throughout south america inspired him to become a revolutionary. c. the tropical climate of north america has encouraged many south american countries to produce goods there. d. the proximity of the united states to middle and south america has strengthened its relationship to the region.