Admission test for the degree course in medicine and surgery 2012-2013

Domanda 32 di 80

Global warming is threatening the survival of California's redwoods. These trees benefit from coastal fog which is captured by the trees, causing water to drip onto the soil and therefore watering them. Since fog is now 30 percent less frequent than it was 50 years ago the trees will not have this source of water and are therefore likely to begin to die out. Which one of the following must be assumed in the above argument?