Which symbol on a regulatory marker is used to warn of a rock or other underwater hazard?

Diamond shaped regulatory marker.

Explanation: The regulatory markers are those symbols that are used in order to guide us about any particular place. It warns about the area, how the situation could be, how dangerous it could be, and what are the things that we are not suppose to do. So these informations must be carefully noticed and obeyed.

In order to warn about a rock or any other underwater health hazardous situation, a diamond-shaped marker is generally used in which the diamond shape is made of orange color and the writings are done in black ink.

a. the production of carbon dioxide through the process of photosynthesis

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.