The Future of Space Travel May Not Lie with Humans

question 346

Multiple Choice

The future of space travel may not lie with humans, but with robots. At the dawn of the space age, space travel required human astronauts-they were simply more capable than robots. But humans developed technology that steadily made robots more attractive. Astronauts have to breathe, eat, and drink to keep going. But robots can travel to the ends of the solar system free of such constraints. They can do more, go further, and because they don't require costly life-support systems, they can do it all more often. Of course, they still require human direction. Nevertheless, we should all look for more robotic space travelers in the future.
Which of the following is a logical conclusion based on the passage?

• A)Humans must be careful not to make robots too intelligent.
• B)Robots might be a more practical choice for space travel than humans.
• C)Humans can travel to the edge of the solar system using present technology.
• D)Robots and humans will travel the solar system together.

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Definitions:

Nutrients

Substances required by the body for growth, energy, repair, and maintenance.

Nervous

Relating to the nervous system, which is comprised of the brain, spinal cord, and a network of neurons that convey signals throughout the body.

Lymphatic

Relating to the lymph system, which is part of the immune system and helps remove waste and maintain fluid balance in the body.

Respiratory

Relating to the process of inhaling oxygen and exhaling carbon dioxide for the purpose of maintaining life.