All the organisms that live in a specific area and all the abiotic features of their environment make up a(n)
A) population.
B) community.
C) ecosystem.
D) food web.
C
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In food chains, energy moves from one source to the next, resulting in a loss of usable chemical energy to the environment. What is typically the amount of chemical energy transferred between trophic levels?
A. 5% B. 10% C. 15% D. 90% E. 100%
The majority of countries in the core are not expanding their nuclear power capabilities
Indicate whether this statement is true or false.
What is the distance from Midway Island to L?’ihi, in kilometers? What is the difference between their ages? What has been the rate of movement of the Pacific plate, in centimeters per year, over this time frame?
What will be an ideal response?
International environmental policies arise from ________
A) environmental impact statements B) international conventions or treaties C) distribution and use of pollution permits D) decisions by the United Nations Environment Programme E) informal agreements reached by multinational corporations