Ozone Layer quiz

More questions about Ozone Layer

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Which weather event makes ozone you can smell?

   Answer: Lightning

   Why: A storm's downdrafts carry that lightning-made ozone down from higher in the clouds to nose level.

2. 2 Medium

   In which month is the Antarctic ozone hole usually biggest?

   Answer: September

   Why: Ozone loss needs sunlight: chlorine primed on icy clouds in the dark polar winter starts destroying ozone when the Sun returns in spring.

3. 3 Hard

   In which country was ozone scientist Mario Molina born?

   Answer: Mexico

   Why: In 1974, working with Sherwood Rowland, Molina warned that chlorine from CFCs could eat away the ozone layer.

4. 4 Easy

   Which gas makes up most of the air in the ozone layer?

   Answer: Nitrogen

   Why: Even at the layer's peak, only a few thousand of every billion air molecules are ozone; the rest is mostly nitrogen and oxygen.

5. 5 Medium

   Which eye disease does extra UV from ozone loss make more common?

   Answer: Cataracts

   Why: A cataract clouds the eye's clear lens, while glaucoma, a different disease, damages the optic nerve instead.

6. 6 Hard

   Which world's ozone layer did a space probe discover in 2011?

   Answer: Venus

   Why: Venus's ozone layer sits about 100 km up, far higher than Earth's, and is up to a thousand times less dense.