Oxygen is an electronic which can be defined as pure substance..we breath in oxygen and breath out carbon dioxide
oxygen and carbon dioxide exchanged in the lungs
Answer:
all I can see is your questions, but a female will have two X chromosomes, a male will have a X chromosome and a Y chromosome. So if Evans has a XY it's a he and if it's an XX it's a she.
Explanation:
The correct answer is Salinity.
Salinity refers to the principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater. It is the measure of all the salts dissolved in water. It is usually measured in parts per thousand.
Answer:
to area of high concentration to form a solution.
