Fill in each blank with the correct form of the given word.

1. A _______ must be able to keep calm while performing a medical operation. (SURGERY)

2. Deforestation is one of the causes of serious habitat _______. (LOSE)

3. A food chain helps maintain _______ balance. (ECOLOGY)

4. She closed the curtains because she wanted some _______. (PRIVATE)

5. Household electronic devices save people a lot of time from doing _______ chores. (REPEAT)