Clouds passage

Lines 65-70 are best described as

a summary of the primary conclusions of the study

In the first paragraph, the author relies in which of the following to establish credibility?

Data from a scientific study

Which of the following is an accurate reading of note 2?

The 2003 AAC Conference took place in Friedrichshafen, Germany

According to the passage, the relationship between aircraft contrails and cirriform clouds is best expressed by which of the following?

aircraft contrails increase the number of cirriform clouds that form

The author states "this is a major claim" in order to

call attention to a claim by highlighting its importance

In relationship to the passage as a whole notes 1 and 2 do which of the following

document studies that show how contrails contribute to global warming

The function of the note in line 1 is to

document the specific source for an empirical claim

The primary goal of the passage is to

explore the relationship of air traffic to atmospheric temperatures

According to lines59-70, aircraft flying lower would result in all of the following consequences except

increasing the number of cirriform clouds

The author's strategy in paragraph three can be best described as presenting a

qualifying statement that is modified by a following statement

The author's tone in paragraph 3 can best be described as

reasoned

Taken as a whole, the notes suggest that

the author has consulted both published and unpublished sources

What aspect of the Williams and Noland study is emphasized in the last paragraph?

the rapidity with which improvement will occur

Lines 38-41 point out

an unexpected consequence of a technological improvement

The word "amazingly" emphasizes the author's

surprise at the conclusion of a study