A student lifted weights after school and found that his muscles started to burn. He couldn't continue to lift the weights after prolonged exercising. This muscle fatigue is most likely due to

most likely due to lack of oxygen and build up of waste in the muscles.

Explanation:

answer:

Our freedom of choice in a competitive society rests on the fact that, if one person refuses to satisfy our wishes, we can turn to another. But if we face a monopolist we are at his absolute mercy. ... There is no consensus as to whether an increase in economic freedom of choice leads to an increase in happiness.

Explanation:

It is so important to understand that we are all making choices all the time, even when we chose not to choose we have still made a choice. It is our choices that determine our experiences. ... Unless we are willing to take full responsibility for ourselves and the choices we make, we have no control over our lives