What does the passage mainly discuss?

What can be inferred about the White House from the information in the second paragraph?

Research studies have shown that pressures put on students nowadays are ______.

According to the author, the fact that more full-time students are working for pay ______.

The word “grounds” is closest in meaning to

The encouragement of children to achieve new skills_________

The word enhanced in paragraph 4 is closest in meaning to

The prior treatment for migraines included medicine that

According to the passage, now that scientists know that unusual neurons in certain people are the cause of migraines, they

The best title for this passage would be what?

The author of the passage implies that Eastern Indians

The phrase “in lieu” is closest in meaning to

Why does the passage begin with a description of the properties of calcium nitrate?

The word “it “ in paragraph 1 refers to

The phrase “by and large” is closest in meaning to

According to the passage, what was the greatest advantage of oil as fuel?