Disaster Basics: Four Difficulties, 4000 Levels
Disaster Basics has four difficulties with 1000 levels each and ten questions per level; check the risk before choice. Disaster levels ask for hazard, vulnerability or warning; identify the exposure first.
灾害基础闯关Disaster Basics1000 关灾害基础进阶闯关Disaster Intermediate1000 关灾害基础高阶闯关Disaster Advanced1000 关灾害基础挑战闯关Disaster Challenge1000 关
How it works
- Start at the basic difficulty.
- Ten questions per level; clear one to unlock the next.
- Review at 1/3/7/14/30 days.
FAQ
Which difficulty?
Start at basic and move up when accuracy stays above 80%.
How many levels each?
1000.