RARE Presidential Campaign Button LIKE FATHER LIKE SON ONE TERM & THEY'RE DONE. $4.50; Buy It Now; Free Shipping
The zone that would be most difficult for a plant to live in is the  Benthic zone. It is the zone at the lowest level of a body of  water.
The upper reaches of the mountain are in the death zone. The death zone is a mountaineering term for altitudes above a certain point â around 8,000 m (26,000 ft), or less than 356 millibars (5.16 psi) of atmospheric pressure â where the oxygen level is not sufficient to sustain human life.