Problem: Two biologists studied different living creatures. Matt studied protozoa, while his friend Greg studied nematodes and insects.  Given the paragraph above, please answer correctly the following question:   Which friend studied less about herbivore protozoa?

A: Greg


Problem: Two students learned about respiratory systems in animals. Dana learned more about mammalian lungs, while Barry learned more about the lungs of birds.  Given the paragraph above, please answer correctly the following question:   Which student learned more about alveoli?

A: Dana


Problem: 2018 was a very wet year for the Four Corners area,  because of the subtropical ridge, 2019, on the other hand was a dry year influenced by the same weather phenomenon that lacked strength in this year.  Given the paragraph above, please answer correctly the following question:   Which month of the year was drier, July 2018 or July 2019?

A: July 2019


Problem: Last week, an exact clone of Earth appeared next to our current Earth. Scientists have come to call this new planet, Terra. Terra has the exact same cities, civilizations and history as Earth. Scientists are completely baffled as to how this planet exists, but it undeniably does. The only difference between Earth and Terra is that the citizens of Terra output half as many greenhouse gases into the atmosphere as citizens of Earth do.  Given the paragraph above, please answer correctly the following question:   Does Terra have more or less concentration of carbon dioxide than Earth?

A:
less