Practice check: Choose the correct environmental science answer: what is desertification?

✅ A. AIDS antibodies

✅ D. 4

✅ C. 300,000 km/s

a: 30,000 km/s | b: 3,000,000 km/s | c: 300,000 km/s | d: 3,000 km/s Read more

✅ D. Energy from sources replenished naturally on human timescales

a: Energy only from coal | b: Energy from burning peat only | c: Energy only from oil | d: Energy from sources replenished naturally on human timescales Read more

✅ C. Jupiter

✅ D. Carbon dioxide

a: Oxygen | b: Nitrogen | c: Hydrogen | d: Carbon dioxide Read more

✅ A. Thermometer

a: Thermometer | b: Voltmeter | c: Barometer | d: Seismometer Read more

✅ B. Clock