Answer: 15
Explanation:
90 units divided 6 cases equals 15
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
Grammar, spelling, pronounciation and vocabulary.
