Which of the following statements is true about a swinging pendulum?
A) Its kinetic energy is greatest when it is at the extreme (the highest point) of its swing.
B) Its potential energy is greatest when it is at the extreme (the highest point) of its swing.
C) Its kinetic energy does not change as it swings.
D) Its potential energy does not change as it swings.
B
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Biodiversity is believed to be greatest when a habitat experiences
A. regular disturbances that are not too extreme. B. occasional large disturbances. C. no disturbances. D. either A or B
Which of the following is an environmental benefit of affluence and wealth?
a. Increasing wealth allows for an increased capacity for resource consumption. b. Increased wealth provides resources to apply toward the creation of environmentally beneficial technologies. c. Increasing affluence often leads to a desire to travel widely and frequently in order to see the world. d. The affluence of developed nations is highly desirable and sought after by citizens of developing nations. e. The typical consumption patterns of affluent nations leads to beneficial environmental conservation practices.
According to Figure 12.43 when did the Rocky Mountains form?
A) 540 million years ago B) 430 million years ago C) 300 million years ago D) 170 million years ago E) 50 million years ago
The compound that exerts a major control on the pH of seawater is ________.
A. CO2 B. N2 C. PO43- D. NH4+ E. NO3-