Most of Earth history has been characterized by conditions that are
A) about the same as today.
B) colder than today.
C) warmer than today.
D) none of these
Answer: C
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One advantage of wind power is that it
A. is limited to land areas B. is not noisy. C. does not interfere with wildlife or habitats. D. produces little to no direct carbon dioxide emissions. E. does not require a lot of space.
What is an invertebrate? What will be an ideal response?
In general, the movement toward sustainability is ________
A) faced with growing opposition from economic interests B) declining as interest in sustainable environmental policy declines C) growing, with greater interest from governments and businesses D) still a distant philosophical goal of the environmental movement E) mainly occurring only on college campuses
Which is NOT an unintended consequence of building an artificial levee?
a. ?It causes the stream to flow faster. b. ?It raises the water level during flooding. c. ?It causes more upstream flooding. d. ?It causes more downstream flooding. e. ?It protects towns from flooding for a time.