The Giant Borealis Basin Around the Martian North Pole May

Q19: In what way is Mercury's core unusual?

Q20: The surface temperature of Venus is 730K,

Q21: The largest difference between Mars' northern and

Q22: Mercury's surface most resembles which of these?<br>A)

Q23: Which of these gets so bright as

Q25: Unlike our Moon and Mars, all the

Q26: The scarps on Mercury were probably caused

Q27: Contrast the atmosphere of Venus with its

Q28: As with the lunar mare and Earth's

Q29: In age, the surface of Venus is