It has been estimated that about ________ of the CO2 added to the atmosphere has been absorbed by seawater.
A. 5%
B. 25%
C. 40%
D. 15%
Answer: C
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On the map below, all of the following would be considered "interpretations" except
A) spring migration routes.
B) Ivvavic National Park.
C) concentrated calving areas.
D) porcupine caribou herd range.
Which of the following is a correct example of global warming creating a positive feedback?
A) Ice has a higher albedo than water so replacing ice with water causes the surface to warm. B) Ice has a lower albedo than water so replacing ice with water causes the surface to warm. C) More water evaporating will create more low level clouds, causing the surface to warm. D) Less water evaporating will create more low level clouds, causing the surface to warm.
The coccoliths on the outside of coccolithophores are made of silica.
Answer the following statement true (T) or false (F)
When solutions of AgNO3 and NaCl react, the balanced molecular equation is: AgNO3(aq) + NaCl(aq) ? AgCl(s) + NaNO3(aq) How much AgCl is produced when 3.10 g of AgNO3 and 0.600 g of NaCl react?
A) 1.47 g B) 2.23 g C) 2.62 g D) 3.70 g