One summer, a sinkhole opened up in a swamp and all of the water in the swamp dried up. The next summer, there was an extraordinary amount of rain, and the dry basin that had been the swamp filled with water. The environmental change that occurred in the second year acted to
A. decrease the stability of the swamp ecosystem.
B. slow climate change in the swamp ecosystem.
C. increase the stability of the swamp ecosystem.
D. speed up climate change in the swamp ecosystem.