Question

in the relatively new era of human space exploration, astonishing feats seem to come one after another. from the 1960s, the united states and the soviet union sought to land on the moon. now, research reaches beyond the earths atmosphere, from orbiting the planet to walking on the moon. today, over five - hundred people from roughly forty countries have orbited earth. the international space station, the first elaborate global scientific project in history, is the result of the hard work of five different nations. experts, from astronauts to physicists, are now working toward the next interstellar triumph: sending humans to mars. there are important motivations for this daunting yet essential task: scientific progress and the long - term survival of the human species. select the two supporting claims that the author makes to argue that sending humans to mars is a wise move for the advancement and ultimate survival of humanity. mars may contain substances that could enhance life for humans on earth. getting many nations on earth to work toward one goal will promote peace. settling on mars helps to solve the problem of earths overpopulation.

Explanation:

The author argues that sending humans to Mars is important for the advancement and survival of humanity. The idea that Mars may contain substances to enhance life on Earth and that settling on Mars can help with Earth's over - population are relevant to the advancement and survival themes. The claim about promoting peace among nations is not directly related to the advancement and survival of humanity in the context of Mars exploration.

Answer:

1. Mars may contain substances that could enhance life for humans on Earth.
2. Settling on Mars helps to solve the problem of Earth's overpopulation.