Answer:D
Explanation:
Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.
Soil structure is important becuse it does affect the characteristic of soil.
this is how particles are arrange in different type of soil
Sand soil:particles are very loose,it does not rentent water or nutrients,lack humus
clay soil:very packed particles,becomes water logg,rich in nutrient and humus.but is not aerated
Loamy soil is not packed in particles but is kind of in between
I think it is B, that helps disprove it so it can't prove it.
