CLIL PAGES » Стр.124 (d)

D. Read again and complete the diagram below. Sea level: Pressure = 1 atm. Balloon is full size. Middle level: Depth = 10 m. Pressure = 2 atm. Balloon is half its original size. Bottom level: Depth = 20 m. Pressure = 3 atm. Balloon is a third of its original size.