Which one of the following least represents ecosystem capital?
A) Oil and natural gas reserves buried underground
B) Prairies and forests that reduce erosion
C) Introduced species that change ecosystems
D) Natural populations of salmon in the oceans
Question 2
The most effective way to reduce smoking in children in the United States has been to
A) raise taxes on cigarettes.
B) prohibit the use of cigarettes by characters in movies and on TV.
C) ban cigarette sales within a half-mile of schools.
D) ban cigarette sales to people under the age of 18.
Germination of grass seeds involves mobilization of stored reserves
A small ecosystem.
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Stages of Natural Birth "مراحل الولادة الطبيعية"