Which of the following statements best describes how this object may have formed?
A. Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen.
B. A supernova exploded, probably from the late-stage evolution of a high-mass star.
C. A star ejected its outer envelope of gas and plasma.
D. Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation.
Answer: D
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Smart growth or new urbanism tools include greenbelts around cities, high density cluster housing, and
a. extensive freeway networks to provide efficient travel to and from work b. taxing buildings c. taxing land instead of buildings d. no construction of expensive mass transit systems e. use of only fuel efficient personal transportation
How can you tell a point event table from a line event table?
What will be an ideal response?
Undernourished parents often raise children who are undernourished because the parents
A. Do not have access to the information about nutrition. B. Cannot afford to feed their children properly. C. Transfer genetic deficiencies to their children. D. Do not know any better. E. All of these are reasons for the vicious cycle.
Precession of the equinox refers to ____
A) changes in the shape of Earth's orbit as it revolves around the sun B) changes in Earth's tilt as it orbits the sun C) changes in the seasons, especially from winter to summer D) the wobble of Earth on its axis