Which of the following solutions is the most dilute?
A. one liter of water with 1 gram of sugar
B. one liter of water with 10 grams of sugar
C. one liter of water with 5 grams of sugar
D. one liter of water with 2 grams of sugar
E. They all have the same volume.
Answer: A
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Darwin cited embryology as supporting evidence for the theory of evolution
Indicate whether the statement is true or false
During the mid-Cretaceous period
A) corals grew substantially closer to the poles than they do now. B) dinosaurs were confined to areas within 10 degrees of the equator. C) global temperature was 2-4 degrees Celsius higher than now. D) sea level was lower than now.
Three basic classes of collisions include all but which of the following?
A. Oceanic plate versus oceanic plate B. Continental plate versus continental plate C. Oceanic plate versus continent-bearing plate D. Continental plate versus mantle plate
The term half life represents the time it takes
A. for the parent atoms to decay into atoms half their original size. B. for the Sun to decrease its size by 50 percent. C. to dissolve half of the atoms in the lattice. D. for half of the parent atoms to decay into daughter atoms.