Answer:
Layer D
Explanation:
Layer D would be the oldest form of undisturbed rock. This would mean that since it is the oldest, it will be <em>least</em> similar to the present day form of that organism.
Answer: hot humid with lots of rain. Explanation: ocean currents act as conveyer belts of warm and cold water sending heat to the polar regions and helping the tropical areas cool off, thus influencing both weather and climate.