Which of the following is true?
A) Zoos and gardens can replace most important species because breeding technologies are improving.
B) Restoration ecology can completely restore any damaged ecosystem.
C) When we damage ecosystems we lose both biodiversity and valuable ecosystem services.
D) Our understanding of genetics allows us to replace extinct species.
E) Humans can find and make their own resources if they destroy natural ecosystems.
C
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The tropical wet-and-dry climate is influenced mainly by the ____
A) polar front and the subtropical highs B) polar front and the ITCZ C) subtropical highs and polar front D) ITCZ and subtropical highs
Frost occurs when dew freezes
Indicate whether the statement is true or false
What role does economic discounting play in cost-benefit analyses of global warming?
What will be an ideal response?
Large areas of high tablelands are found in
A) Africa. B) Central Asia. C) Greenland. D) Australia.