My guess would be opinion.
Rosa Parks was an important person in history. She along with some other African Americans stood up for what they believed in, or in her case stayed seated.
There were no roads or automobiles in the area.
It's clear through the passage that there are no paved roads or cars to get the miners from place to place. They had to carry all of their gear and supplies through dangerous trails by foot, only being able to travel a certain amount each day.
<span>Well, he starts off by justifying his reasons with patriotism. "Nowhere is the promise of innovation greater than in American-made energy." He also uses facts and promises of a brighter future to gain an audience. "75% of our potential offshore oil and gas resources. Right now, American oil production is the highest that it's been in 8 years. Last year, we relied less on foreign oil than in any of the past 16 years." We also see more facts in his closing statements, "But with only 2% of the world's oil reserves, oil isn't enough"
He then inadvertently talks about different types of energy sources. These being clean, reliable and opening jobs. This passively emphasizes that we need clean energy for ambiguous reasons, such as global warming and pollutants. It also gives the listeners hope of an increase in the job market. We know that America has had low job-rates lately, so the possibility of new jobs sparks a fire in the heart's of the people. Also, he mentions the gas will be cheaper, which is big, too, since our economy has gone through inflation and a financial depression, and because of this gas has skyrocketed. Cheaper gas motivates people to invest (Taxes?) in these new ideologies and technologies.
Hope this helps :)</span>
