опасные

In a sentence

• Опасные животные можно встретить в джунглях.

  Dangerous animals can be found in the jungle.

  Here, 'опасные' is an adjective describing animals, showing their trait or characteristic of being dangerous.

• Эти дороги зимой становятся особенно опасными.

  These roads become especially dangerous in the winter.

  In this sentence, 'опасные' describes the roads, indicating a state or condition of being dangerous during winter.

• Я всегда избегаю опасных ситуаций для своей безопасности.

  I always avoid dangerous situations for my own safety.

  Here, 'опасных' is used to describe 'ситуаций' (situations), showing their potentiality to involve danger or harm.