ANS: C
The life history of a star is based on its initial mass. Stars convert hydrogen atoms into larger carbon
and oxygen atoms. Once the star begins to consume the carbon and oxygen it produced, it increases its
energy output. The rate of this is determined by temperature and size. Information can be found in the
section Stars and Seas
ANS: B
Water is a common resource throughout our solar system. Although Jupiter has hundreds of times
more water than Earth, it is in a solid state of ice. Information can be found in the section Are There
Other Ocean Worlds.
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Compare the population pyramid of Haiti to that of Cuba. What trends are evident and accounts for these?
What will be an ideal response?
The current through a 10-ohm resistor connected to a 120-V power supply is
A. 10 A. B. 1 A. C. 12 A. D. 120 A.
The term _______________ refers to a dense tangle of vines and small trees that develops where direct sunlight reaches the ground in a rainforest
Fill in the blank(s) with correct word
In which of the following processes is water the least important?
a. carbonation b. hydrolysis c. oxidation d. salt crystal growth e. unloading