each day is 24 hours
one to two pounds each day.
it depends on how long each book is and the time you out into it each day
As long as possible.
That varies for each location. In Nome, Alaska, each day in January is 24 hours of darkness.
3-4 hours a day
they sleep aprox 18 hours a day
Each day is a long journey.
30 minutes
a lot
Mercury has very very long days. Each day on Mercury last as long as 58 hours, 15 hours on earth.
koalas sleep upto 20 hours a day
No frequency refers to how often you work out. Duration is how long each day.