The rules for writing the chemical formulas of covalent compounds must include the use of prefixes, naming the first non-metal and replacing the end name of the second non-metal with "ide".
A covalent compound is a type of compound that contains covalent bond --the atoms share pair of electrons.
There are basic rules for writing the chemical formulas of covalent compounds, these rules include the following;
Use the prefixes such as mono (1), di (2), tri (3), to indicate the number of that particular element in the given compound.
<em>Start </em>by naming the firstnon-metal present in the compound, which is found far left on the periodic table by its elemental name.
<em>Followed by</em> naming the second non-metal by replacing the end of its elemental name with an "ide".
<u>Option-(A): </u>In an illustrated flowchart, the movement of carbon atoms through an aquatic food chain is indicated by arrows.
<u>Option-(C)-</u> An increase in the population of scavengers.
Explanation:
The ecological pyramid is comprised of different level of organisms as the energy flow occur through them in a more directed form inside the different spheres depending upon the medium for energy transmission across the given parameters or area. As, the arrow provides us with a more directed way for understanding the transmission of energy through different organisms and there respective levels inside the ecological pyramid.
While, the increase in the level of scavengers or the animals which consumes the left overs of other living beings is balanced with the addition of the secondary consumers to the aquatic ecosystem.As, it will provide equal chances and energy to the different beings inside the ecosystem.