That would be PH and Salinity and Temperature
99% Sure its A. Transpiration
Answer:minerals and rocks
Explanation:
the is a definite article meaning that you cannot use it
"an" can only be used before words beginning with vowels
therefore the answer is" a"
<span> - </span><span>A typical meal contains </span>all four<span> types of </span>macromolecules<span>. </span>Living things<span> are made of </span>four<span>types of molecules, known as </span>macromolecules<span>: ... Highly specialized at what </span>they<span> do, proteins form both the railways and the motors that ... it exists as a single strand and </span>has<span> a special building block not</span>found<span> in DNA.</span>
