The theory behind narrow row corn production is that yields of any crop will be maximized when plants are uniformly distributed across the field. To achieve this, the spacing between all plants between and within the rows must be equal. For an equidistant plant spacing with 30,000 plants per acre, both the row spacing and distance between plants within the row would be 17.4 inches. In a 15-inch row system, plants would be 13.9 inches apart in the rows.
Swallowed air. Aerophagia, or air swallowing, is a common cause of gas in the stomach. Everyone swallows small amounts of air when eating and drinking. However, eating or drinking rapidly, chewing gum, smoking, or wearing loose dentures can cause some people to take in more air. Burping, or belching, is the way most swallowed air - which contains nitrogen, oxygen, and carbon dioxide - leaves the stomach.
By the time the air reaches the air sacs in the lungs (called alveoli), it. is 100% saturated with humidity, even when we breathe very dry air. So breathing dry. air versus humid air has no effect on the partial pressure of oxygen reaching our lungs. A second explanation is more likely. As humidity increases, the density of the air. increases. More dense air creates more resistance to airflow in the airway resulting in. an increased work of breathing (i.e. more shortness of breath). Another possible explanation is that as humidity increases, the prevalence of many.