Reading drill: Tiny particles, big impact

One Academic Reading passage on atmospheric aerosols, with 13 questions: matching headings, True/False/Not Given and summary completion. Twenty minutes, marked the moment you hand in.

Questions: 13
Time: 20 min
Marked: Instantly

How do you want to sit it?

Exam conditionsThe passage as the paper prints it, and 20 minutes on the clock.PracticeThe same passage and the same questions, with the harder words marked in the text — hover or tap one for its meaning, in English or in your own language. You can check your answers as you go. The clock counts up rather than down, and nothing is handed in for you.

The clock starts when you press the button.