Problem: Two new planets have just been discovered in our solar system. Scientists have just landed on both and are in the process of analyzing the environment and atmosphere of each planet. What is immediately apparent is that both planets are remarkably similar to Earth since both are oxygen rich and do not require a space suit to breathe. Another similarity that one of the planets, Jarthrow, has with Earth is that it naturally outputs approximately the same amount of greenhouse gases into the atmosphere as Earth does. The other planet, Millhouse, outputs about twice as many greenhouse gases. Climate scientists are rushing to try to see if anything new can be discovered to help out our planet with these new discoveries. Will Jarthrow have a higher or lower temperature than Millhouse?

A: lower

Problem: Two groups of students learned about protozoa for a school project. Group P studied more about predatory protozoa, while group G studied about grazing and parasitic protozoa, plus portozoa as food sources. Which group learned less about protozoa being food sources for insects?

A: Group P

Problem: Two boys read about the Earth, Evolutionism and the Gaia hypothesis. Brad liked Evolutionism more, while Stan preferred the Gaia theory, and agreed with it. Which boy disagreed that the Earth tends to achieve a stable state?

A: Brad

Problem: Croatia and Italy were located on opposite shores of the same sea. Croatia based its economy on tourism and fishing, while Italy based its economy on conventional agriculture. Both countries had thriving economies, but they both polluted the sea in different ways. Which country caused fewer marine debris?

A:
Italy