One of the advantages is that you won't have to remind them and you'll save.paper and another is that the person do sent end up with a big balance they have to pay off
some disadvantages is that the check could bounce if you accept checks
hope that this helps
Sara is dehydrated because she sweats and the water is distributed faster.
Jeff is Dehydrated because he is losing the stuff in his stomach
For hot or cold you can make sure to replenish electrolytes. Make sure you are dressing appropriately in cold weather (dressing warm enough but not too warm because of overheating). If you are exercising in hot weather make sure to be hydrated when you start, drink water throughout, and pay attention to your body and if you are overheating make sure you stop and take a rest or slow down.