Scientific evidence suggests that Earth formed approximately ____________ ago
a. 4.6 trillion years d. 4600 years
b. 4.6 million years e. 460 years
c. 4.6 billion years
C
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Answer the following statement(s) true (T) or false (F)
1. A top-down approach to solving environmental problems can help facilitate bottom-up approaches by building infrastructure to support virtual environmentalism. 2. Dialogic democracy suggests that the power of individuals at the “top” is independent of the power held by those at the “bottom”. 3. Participatory development helps ensure that the local community is supportive of and invested in projects that link top-down and bottom-up approaches to environmental challenges. 4. Environmental movement should be strictly bottom-up because top- down policies rarely do any good to the environment.
The typical percentage of high-quality energy loss in transfers from one trophic level to the next is about ____.
A. 1% B. 5% C. 35% D. 60% E. 90%
The most important factor in determining which biome is found in a particular area is
A. soil type. B. topography. C. magnetic fields. D. climate. E. rock cycle.
How did the concept of fronts come about?
What will be an ideal response?