Which represents the atom of helium, a noble gas with an atomic number of 2?
A. A
B. B
C. C
D. D
Answer: B
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The combination of ________ might lead to increased glaciation
A) colder autumns and colder springs B) warmer autumns and warmer springs C) warmer summers and warmer winters D) cooler winters and cooler summers E) warmer winters and cooler summers
Which type of cells produce antibodies?
A) A cells B) NK cells C) plasma cells D) T cells
Which of the following is the main source of energy for a hurricane?
A. upper-level jet stream B. warm ocean water and the release of latent heat of condensation C. ocean currents and tides D. warm air rising and cold air sinking in the vicinity of weather fronts
According to the final pages of the text, the three central issues of environmentalism are:
a) sustainability, human health, and wilderness conservation. b) conservation, environmental justice, and solidarity. c) sustainability, environmental justice, and the beauty of ecology. d) conservation, the beauty of ecology, and the environmental sociological imagination.