1. Researchers often _______ extensive studies to understand complex social phenomena.
2. If governments _______ more in renewable energy, air pollution in urban centers would decrease significantly.
3. The final report on climate change _______ by an international panel of scientists last month.
4. The new policy had a profound _______ on the local economy.
5. The research team was instructed to _______ a thorough analysis of the data.
6. The lead scientist told the journalist: 'The discovery is a major breakthrough.' How can this be reported?
7. Many species are currently _______ with extinction due to habitat loss.
1. What is the main topic of the passage?
2. According to the passage, which of the following is an example of a system under strain in megacities?
3. In the final sentence, the word 'mitigate' is closest in meaning to: