1. What is the greenhouse effect? What role does it play in the atmospheres of Venus and Earth?
2. During which configuration of planets is it easiest to observe Mars from Earth? (Hint: Guided Discovery: The Inner Solar System, on page 188, can help.)
3. How would you tell which craters on Mars were formed by meteoritic impacts and which by volcanic activity?
Already registered? Login
Not Account? Sign up
Enter your email address to reset your password
Back to Login? Click here