The loss of fluid that isn't perceived by sense is called insensible losses (however the term for loss of fluid from the body is called dehydration but this one is noticeable)
Put your mind to it and make certain goals that you want to accomplish by a certain time etc. you won't see improvement unless your commited to your goals && if you meet your goals make new goals to accomplish
The benefit of deep processing is that it gives a lasting memory compared to a shallow processing in where the memories or thoughts do not last. The cognitive processing of one's stimulus is it's meaningful properties rather than the perceptual one.
I think the answer is 10,000,
because 500 mL and 20 is equal to 10,000.
500 x 20 = 10,000