(a human brain weighs about 1 kg and contains about 1011 cells. assuming that each cell is completely filled with water (density= 1g/ml), calculate the length of one side of such a cell if it were a cube. if the cells are spread out into a thin layer that is a single cell thick, what is the surface area in square meters?

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but