He three conditions that encourage the presence of marine life in the ocean are proximity to land, water depth and exposure to sunlight.
<span>Exposure to sunlight is important since sunlight promotes the metabolic activities of algae. If we look at the food pyramid for the aquatic ecosystem, the algae is in the lowest and therefore is basic necessity. </span>
The unit used to measure the volume of a solid is cubic centimeters.
Which elements are most reactive?
The alkali metals, found in group 1 of the periodic table (formerly known as group IA), are very reactive metals that do not occur freely in nature. These metals have only one electron in their outer shell. Therefore, they are ready to lose that one electron in ionic bonding with other elements.
Fluorine is the most reactive
i can think of 3 subatomic particles found in a nucleus protons, neutrons, and electrons
