An astronomer tells you that he has discovered a new planet that he calls Planet X.All he knows about Planet X so far is that it has a very dense atmosphere with a temperature approximately 5 times warmer than that of Earth.What hypothesis can you reasonably make regarding the atmosphere of Planet X?
A)The atmosphere of Planet X must not contain any oxygen,so people couldn't live there.
B)Planet X cannot contain water in any form.
C)The nitrogen cycle does not operate on Planet X in the same way it does on Earth.
D)The atmosphere of Planet X has a higher concentration of greenhouse gases than Earth's does.

Question

Quizplus · Accepted Answer

Since the astronomer mentioned that the temperature of Planet X is approximately 5 times warmer than Earth, it can be hypothesized that the planet has a high concentration of greenhouse gases in its atmosphere. This would trap heat and cause the planet to have much higher temperatures. The other choices are not supported by the given information and are therefore less likely to be correct hypotheses.

An Astronomer Tells You That He Has Discovered a New