As more CO2 dissolves in the ocean, the ________ increases.
A. concentration of H+
B. number of reefs
C. sea level
D. fish size
Answer: A
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Formaldehyde is a toxic preservative with the following chemical formula: H2C 
O Which of the following compounds would best serve as a starting point for its production?
A. CH3CH2OH
B. H2O
C. H2C CH2
D. H3COH
E. none of the above
The Prime Meridian ________.
A. runs through Greenwich, England and aids in locating places on an east-west scale B. rotates every quarter of a century around the world C. is otherwise known as the International deadline D. is used to measure the distance from the zero degrees latitude
Why does the Leaning Tower of Pisa lean? Is it likely to lean so much it will someday fall over? What will be an ideal response?
The Fort McMurray fire in 2016 ended up being the costliest natural disaster in Canadian history with direct and indirect costs totalling ________.
A. $9.9 billion B. $99 million C. $19.9 million D. $9.9 million