Acylinder with a mass of 12 g has a radius measuring 2 cm and a height of 6 cm. what is its density?

(12g)/(75.398cm^3) 

=0.159 g/cm^3 

answer would be = 0.16 g/cm^3

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.

In some developing nations the percentage of the animal protein from fish in the diet can be as high as 25 percent.  about 85% of fish caught is used for human consumption.  the remainder is converted into fishmeal and fish oil.