83. The Dream of Traveling to Mars

According to the essay, what is a primary reason humans want to travel to Mars?
1. To escape political problems on Earth.
2. To explore and potentially create a second home for humanity.
3. To mine for valuable minerals and resources.
4. To prove that a one-way trip to another planet is possible.
How long does the one-way journey to Mars take?
1. Several weeks.
2. About seven to nine months.
3. Over a year.
4. The essay does not say.
What is one of the major health dangers mentioned for astronauts during the journey?
1. The effects of zero gravity on bone density.
2. Loneliness and psychological stress.
3. Solar radiation that can cause long-term illness.
4. Malfunction of the spacecraft's life support systems.
Why will the first explorers need to live in special habitats on Mars?
1. Because the surface is constantly bombarded by meteorites.
2. Because the planet is too cold and its air is unbreathable.
3. Because they need protection from potential alien life forms.
4. Because the habitats will help generate a magnetic field.
What will be a crucial task for technology on Mars, according to the essay?
1. Building large, transparent domes to grow Earth plants.
2. Finding water ice to turn into drinking water and oxygen.
3. Communicating with Earth with less than a 3-minute delay.
4. Creating fuel from the rare elements in Martian soil.