Answer:
The correct answer is 10 hours.
Explanation:
A teacher has the duty to do extra work in order to do a better job. There are two main things that a teacher is urged to do during the 10 hours weekly in non-teaching activities. And they are the planning process of the classes and the other activity is grading students' exams or workshops.
Snake
python
animal
Reptile
The correct answer should be Inexorable because inexorable means unyielding or unrelenting, which would fit the context here.