Hello my friends! Please check the grammar and sense in the definition.
Dangerous - The situation isn't safe which can cause to an accident.

Question

Answer

"Dangerous - The situation isn't safe which can cause to an accident."

Just a small change is needed.
"Dangerous - The situation isn't safe which can lead to an accident."
OR
"Dangerous - The situation isn't safe which can cause an accident."

Answer

Dangerous is an adjective. So your definitionm should act like an adjective.
.
Dangerous - Describes a situation that isn't safe, for example, which could lead to an accident.

Ne manquez pas cette occasion d'apprendre une langue depuis chez vous. Découvrez notre sélection de professeurs de langues expérimentés et inscrivez-vous dès maintenant à votre premier cours !