AM and PM are associated with 12-hour timekeeping, as opposed to the international 24-hour clock. The 12-hour system grew up mainly in Northern Europe, and spread globally from there via the British Empire.
The adjective STRENUOUS has 2 senses: 1. characterized by or performed with much energy or force. 2. taxing to the utmost; testing powers of endurance. Familiarity information: STRENUOUS used as an adjective is rare.
It's not a question with a quick answer. Y â¦ our body will usually require a period of time to repair, convert and extract wastes, replace micronutrients and salt balances and replace glucose stores within the liver and muscles. There are alot of positive results as a result of strenuous activity.