_______________ can cause great fires as forest fires
Lightning
상태.
condition
Floods can cause great _______________ or even death
harm
만들다.형성하다
foam
홍수
flood
The water droplets ___________ clouds
form
위험한
dangerous
First water goes up into the air. This is called ________________
evaporation
Weather is the _____________ of the air
condition
허리케인
hurricane