A scuba diver is currently exploring the ocean floor. During the day she happens upon two different ocean basins. For some reason, both have signs next to each basin indicating how old they are. According to the signs, basin D is significantly older than basin F. The scuba diver decides to explore basin F first and then will look around in basin D on her return trip. Which basin has a cooler floor?
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Answer: basin D

Keith was reading a book on climate. He found an interesting table that showed the climatic conditions of the earth in two different times, time A and time B. Time A showed earth's climatic condition in the previous century. And, time B showed earth's climatic condition in the present century. Keith was amazed to see how the world has changed in just a century. Which period would be more helpful for habitat of species, time A or time B?
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Answer: time A

Two neighboring islands had different sized populations. Green island had a small population. Red island had a large population and environmental problems. Researchers studied these islands over a span of 5 decades. Which island didn't have enough resources for its inhabitants?
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Answer:
Red