Question

How much iron is needed to make a rod of length 90 cm and radius 0.7 cm]

Answer 1

Answer:

Diffusion is the process of movement of molecules under a concentration gradient. It is an important process occurring in all living beings. Diffusion helps in the movement of substances in and out of the cells.

Answer 2

$\huge \colorbox{yellow}{°•ANSWER•°}$

Thus, 138.6 cm3 of iron is required.