What is the maximum number of covalent bonds that a carbon atom can form? 1) 2 2) 3 3) 4 4) 6

The correct answer option is 3) 4.

Explanation:

A Carbon atom has a total of four valence electrons (a valence electron is an electron in the outermost shell which can participate in the formation of a chemical bond if the outer shell of other atom is not closed).

It means that it can bond in more ways than other atoms. To get the maximum eight valence electrons and make an atom stable.

Therefore, it can make a maximum of 4 covalent bonds with other atoms.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.