Nicotine is only one of the many toxic chemicals
inhaled while smoking. what effect can such
toxic chemicals have on the body?
(1) they stimulate an increase in height.
(2) they stimulate uncontrolled cell division.
(3) they eliminate carbon dioxide from cells.
(4) they eliminate chromosomes from many cells.

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.