The so-called disaster
Let's discuss it from the perspectives of disaster-causing factors, disaster-bearing bodies and disasters.
Disaster prevention and mitigation
We must proceed from the principle of disaster itself.
Weaken the intensity or frequency of disaster-causing factors
Enhance the disaster-resistant ability of the disaster-bearing body
Active response after disaster
Reduce the expansion of disasters and the deepening of hazards.
For high school students
Give a specific disaster.
Such as drought, flood, earthquake and so on.
This may be more telling.