BIOTIC FACTORS OF DESERT:
-Cacti
-other plants mesquite
-rattlers
-desert tortoise
-desert rats
-hawks
-peccary
-licasrds
When transitioning from a mostly rural to a mostly urban society, it is important to keep sustainability in mind. Try to find ways in which the most energy is conserved, which will increase employment and lower revenue and pollution.
Cells can not function properly at high temperatures
Any plant that have ceased elongation. Ex. Hemp and flax
The hydrogen ion concentration of a solution is indicated by its <u>pH </u>value.
Explanation:
- A measure of acidity or alkalinity of water soluble substances (pH stands for 'potential of Hydrogen'). A pH value is a number from 1 to 14, with 7 as the middle point.
- Under normal circumstances this means that the concentration of hydrogen ions in acidic solution can be taken to be equal to the concentration of the acid.
- The pH is then equal to minus the logarithm of the concentration value.
- Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic.
- The pH of a solution is a measure of hydrogen ion concentration, which in turn is a measure of its acidity.
- Pure water dissociates slightly into equal concentrations of hydrogen and hydroxyl (OH−) ions. For a neutral solution, [H+] is 10−7, or pH = 7.
