According to the passage, icebergs originate from a buildup of

Which of the following is NOT a result of the formation of ocean ice?

The word “bore” in line 3 is closest in meaning to which of the following?

In line 7, when the author states that the owners "anxiously watch the sky" there is the implication that the owners

In line 12, the pronoun "it" refers to which of the following?

Which of the following statements about the salinity of a body of water can best be inferred from the passage?

The author states that icebergs are rarely seen because they are

In lines 1, the word “enemies” refers to

In the author's opinion, the importance of coal-generated electricity could increase in the future for which of the following reasons?

According to the passage, icebergs are dangerous because they

Which of the following best describes the organization of the passage?

In line 6, the word “further” is closest in meaning to which of the following?

According to the passage, what happens to homing pigeons when they are about a month old?

In what paragraph does the author describe successful methods for increasing

the oyster population?

Which of the following can be inferred about the order in which Kentucky, Tennessee, and Vermont joined the Union?

Which of the following is the best tittle for the passage?