Answer:
Actually, The reaction is chemical and endothermic. Chemicals A and B form an endothermic reaction, and chemicals C and D form an exothermic reaction. Therefore, chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Explanation:
The water particle are moving faster which cause the to expand
Answer:
I think it's because it will decay and be soil and soil is biotic factor
Answer:
Oxygen (O2) concerntration
Temperature
pH