Question

read this summary of information found in two separate sources. the exploration of mars by humans is possible if safe and efficient technology is created for the journey and the spent on mars. which statements most likely provided the information for the summary? select two options. mars is the second - closest planet to earth and can be observed in the night sky without special equipment. astronauts will need to adapt to using advanced equipment and conducting complex operations farther and far from earth. research aboard the international space station is leading to new discoveries about both earth and the astron themselves. since the end of the 19th century, mars has been considered the planet most suitable and likely for exploration even habitation. novels by authors such as ray bradbury and kim stanley robinson have led people to wonder if living on mars possible.

Explanation:

The summary focuses on the possibility of human - Mars exploration with the right technology. The statement about Mars being the most suitable for exploration since the 19th century and the one about astronauts needing to adapt to advanced equipment (which relates to the technology aspect for the journey and stay on Mars) are relevant. The other statements are either about general facts of Mars observation, research on the ISS, or influence of novels.

Answer:

B. Astronauts will need to adapt to using advanced equipment and conducting complex operations farther and farther from Earth.
D. Since the end of the 19th century, Mars has been considered the planet most suitable and likely for exploration and even habitation.