humans have come to think of bacteria as harmful pathegons that always do harm however this is not the case based on the nitrogen cycle explain why farmers are dependent on bacteria for there crops and what would happen if farmers were able to remove all bacteria from their soil

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock