Answer:
B. The gain or loss of one or more electrons
Answer:
Dirt.
Explanation:
Dirt is considered an abiotic factor and an biotic factor because the dirt is made up of dead organisms and dead twigs and also contains gravel. An abiotic factor is a feature of the ecosystem that is living or was once alive. Abiotic factors are nonliving things in the organisms like the gravel.
The energy that's required to break bonds is called bond energy. Bond energy is used in chemistry, represented by an E, and accounts for measuring the strength of a bond in a chemical bond.
True, the most common chronic diseases involve the heart.