Planet with the most extreme temperature range is

Mercury

Explanation:

Mercury's temperature ranges from 427°C to -180°C

Also, I believe you posted this question in the wrong category, but that doesn't mean you shouldn't get an answer.

the following sets of characteristics describe what we know about the outer plants is c. rocky surface, closet to the sun and larger in size

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.