The amount of heat needed to raise the temperature of 1 gram of a substance by 1°C describes 1.specific heat.
2.heat.
3.enthalpy.
4.calorimetry.

Decomposition is the cycle at which bacteria breaks down any organic material into the soil

Its trait is different and it the organism survive

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.