Q: How has the invention of the personal computer helped people the most?

OPTIONS:
- by replacing paper
- by reducing pollution
- by improving transportation
- by increasing communication
A: by increasing communication
Q: In the initial stages of manned space exploration, scientists needed to address adequate nutrition to provide astronauts with energy throughout the mission. Which of these criteria could not be used when considering food and energy for astronauts during manned space flights?

OPTIONS:
- history of space food
- food crumbs in zero gravity
- rehydration of certain foods
- food storage for long periods
A: history of space food
Q: Jupiter is the largest planet in the solar system. It rotates on its axis once about every 10 hours. What time period on Earth would be 10 hours long if Earth rotated on its axis once every 10 hours?

OPTIONS:
- a day
- a week
- a month
- a year
A: a day
Q: When the Northern Hemisphere is tilted toward the Sun, what season is occurring in Australia?

OPTIONS:
- fall
- winter
- spring
- summer
A:
winter