The value of many natural ecosystem services is most apparent as
A) we appreciate the damages and economic loss that result from the disruption of these ecosystems.
B) new technologies allow us to more fully exploit the natural capital of these ecosystems.
C) research into alternate energy resources continues.
D) new species are discovered and described by scientists.
Question 2
Rain with a pH of 4.6 is
A) about 10 times more basic than rain from non-polluted regions.
B) typical of regions with very low pollution.
C) about 10 times more acidic than rain from non-polluted regions.
D) about 100 times more acidic than rain from non-polluted regions.
The Grants and natural selection of beak size among the medium ground finch.
Example of Health Care Services
Preventive and Primary Care Services
A Natural Oil Seep
When a Tornado Strikes: Social Organization Following a Natural Disaster
Principles of Natural Selection