It takes 12 hours to clean the windows of a certain office building. During the first day of cleaning, the workers were able to clean for 9 hours. If the variable t stands for the amount of time the...
Nasal conchae swirl the air to get inhaled particles to stick to the hairs and mucous membranes in the nasal cavity.
a nostral
If it is you mean, it's clean by tidying things then you can't.If you mean, it's clean by cleanliness then tidy it up.And Vice-Versa.
Just wondering..... what is "it"?