Quiz · Robot Rovers Exploring Mars

Question 1What is the main idea of this listening passage?

Why humans already live on Mars How robot rovers explore the planet Mars How rockets travel to distant stars Why Mars is too hot for any life

Question 2Why must the rovers make some choices on their own?

Their computers are faster than human minds Scientists on Earth are too busy to help Radio signals take several minutes to reach Mars The rovers have no radio equipment at all

Question 3What does one of the rovers carry, according to the passage?

A digging machine A weather satellite A tiny robot car A small helicopter