the first paragraph is talking about people should use public transport more to reduce the production of pollution to help decrease high amount of pollution, in towns and cities, carbon dioxide production can affect weather, and the environments it also decreases traffic and helps people
the second paragraph talks about how public transport isn't it a valid option for people who travel out of cities to in small towns, they speak how they need energy efficient cars to reduce the production of pollution and gas
<span>The sentence which is the hook in this introductory paragraph is</span><span> For the first time in decades, Baby Boomers have been outnumbered by another group--the Millennials. The answer is letter B. This is the introductory paragraph because this explains the main idea of the paragraph and introduces the topic.</span>
The antonym is D. Reckless because cautious is to be very careful about your thoughts and actions. Reckless is completely insane. Your Welcome:)