Natural Disasters quiz

More questions about Natural Disasters

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

1. 1 Easy

   Which volcanic hazard usually moves slowly enough to escape?

   Answer: Lava flow

   Why: On gentle slopes lava typically creeps forward at less than 1 km/h, far slower than a person walks.

2. 2 Medium

   Which 1815 eruption caused the 'Year Without a Summer'?

   Answer: Mount Tambora

   Why: Its sulfur haze dimmed the sunlight, and the cold of 1816 brought crop failures across Europe and North America.

3. 3 Hard

   About how many detectable earthquakes strike each year?

   Answer: About 500,000

   Why: Only about 100,000 of them are strong enough to be felt, and about 100 cause damage.

4. 4 Easy

   What is the most common trigger of landslides?

   Answer: Heavy rain

   Why: Rain soaking into a slope raises the water pressure between soil grains and weakens the ground until it can slide.

5. 5 Medium

   How likely is a '100-year flood' within 30 years?

   Answer: 26%

   Why: Every year carries the same 1% chance, so '100-year floods' can strike in back-to-back years.

6. 6 Hard

   What does each 10° of uphill slope do to a fire's speed?

   Answer: Doubles it

   Why: Uphill, the flames reach the unburnt fuel above them more easily and preheat it, so it catches faster.