The statement which best represents the causes of stiff muscles is that: A. stiff muscles only result from overwork.
What is a muscle?A muscle can be defined as a type of tissue that is found within the body of an organism and it typically serves as a source of power and force to the organism, so as to enable it perform a task or work.
This ultimately implies that, stiff muscles would only result when an individual overworks his or her body.
Read more on muscles here: brainly.com/question/25285043
Give three reasons you feel the school should or should not rely on fossil fuels.
Answer:
To keep the community air clean, to set a good example for the students, to save money.
Explanation:
Using fossil fuels releases carbon into the air which is dangerous to inhale, the students of today and the near future will be the next generation of adults teaching them that it is okay to use them will lead us into a bad place. And newer sources of energy like solar, wind or chemical are money efficient because they take less money to sustain and schools are designed to be around for a long time.