Stachybotrys chartarum (atra) is the black mold that has most been associated with media reports on the toxic effects of fungal exposure. It prefers gypsum wall board as a substrate and requires very high relative humidity levels to grow. Stachybotrys chartarum is known to produce the mycotoxin, satratoxin.
When total utility is rising with the increased consumption of a good, but is rising at a decreasing rate, marginal utility is negative. b. When total utility is rising with the increased consumption of a good, and is rising at an increasing rate, marginal utility is positive. c. At the maximum point of a hill-shaped total utility curve, marginal utility is infinite. d. When total utility is falling with the increased consumption of a good, but is falling at a decreasing rate, marginal utility is positive.
As a consumerâs consumption level increases, the marginal benefit tends to decrease (which is called diminishing marginal utility). Thus, the marginal benefit experienced by a consumer is highest for the first unit of consumption, and declines thereafter.For example, a customer is willing to pay $5 for an ice cream, so the marginal benefit of consuming the ice cream is $5.s a consumerâs consumption level increases, the marginal benefit tends to decrease (which is called diminishing marginal utility). Thus, the marginal benefit experienced by a consumer is highest for the first unit of consumption, and declines thereafter.