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Directions: Record your answers in the spaces provided in your answer booklet.
Some questions may require the use of the Earth Science Reference Tables.
Base your answers to questions 1 through 3 on the paragraph below, which describes
some factors that affect Earth’s climate.
Earth’s climate is in a delicate state of balance. Many factors affect climate. Any
small change in the factors may lead to long-term cooling or warming of Earth’s
atmosphere. For example, during the last 100 years, measurements have shown a gradual
increase in atmospheric carbon dioxide. This change has been linked to an increase in
Earth’s average atmospheric temperature. Variations in the tilt of Earth’s axis have been
similarly linked to the occurrence of ice ages. Both the increases in temperature and the
occurrence of ice ages have been linked to changes in global sea level.
1.
State
one reason for the increase in the amount of carbon dioxide in Earth’s
atmosphere during the last 100 years. [1]
2.
State
one way that the recent increase in average global temperature can cause
changes in ocean water level. [1]
3.
State what would happen to the average summer and winter temperatures in New
York State is the
tilt of Earth’s axis were to decrease from 23½
to 20
. [1]