Which statements describe abiotic factors in an environment? check all that apply.

chickens run around a farm.

soil retains water and nutrients.

several rocks rest in a stream.

plants compete for sunlight in an ecosystem.

clouds create shade that changes temperatures.

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.

distance, luminosity, brightness, radius, chemical composition, and temperature