Practice check: Choose the correct environmental science answer: what is the ozone layer’s main protective role?

✅ A. Breakdown of larger plastic items and synthetic fibres

a: Breakdown of larger plastic items and synthetic fibres | b: Only fresh snow | c: Only volcanic ash | d: Only untreated timber Read more

✅ C.  Wattmeter

✅ A. 100°C

a: 100°C | b: 50°C | c: 0°C | d: 150°C Read more

✅ C. H2O

a: O2 | b: NaCl | c: H2O | d: CO2 Read more

✅ B. Rhinologist

✅ B. Troposphere

a: Exosphere | b: Troposphere | c: Mesosphere | d: Thermosphere Read more

✅ C. J

✅ D. Anaesthetics