Bone marrow. The inside of your bones are filled with a soft tissue called marrow. There are two types of bone marrow: red and yellow. Red bone marrow is where all new red blood cells, white blood cells, and platelets are made.
Mine is 8m x 7m (3m is 10 feet, so around 27 x 23 feet). This is normal for an Australian classroom, although there's a fair bit of variation.
What are the school locker dimensions? The standard width of this type of locker is around 30.5 centimeters to 38 centimeters. The depth of the storage is usually 46 centimeters, however, in the United States, the depth is 30.5 centimeters to 38 centimeters. The standard height is approximately 182.9 centimeters.