Two studies were conducted to investigate the quality of various potting soils.
Samples of three different potting soil mixtures (A-C) were tested. Each was analyzed for fertilizer content and dry particle content. The results are shown in Table 1.
Plants are often plagued by various fungi. Study 2 investigates the resistance to fungal growth in each of the soils.
Another sample of each potting soil was saturated with water and left undisturbed for several days. One set was exposed to sunlight, the other was kept in a cool, dark room. Fungal growth was noted and recorded in Table 2.
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Based on the data presented in Table 1 and Table 2, which factors affected fungal growth in the pots exposed to light?CorrectIncorrect
Hydrangeas are flowering shrubs that prefer to grow in shady areas. A gardener wishing to plant a hydrangea should use which of the tested potting soils?CorrectIncorrect
According to Table 1, as fertilizer content increases, silt contentCorrectIncorrect
A fourth potting soil was tested. It was found to have extremely high fungal growth in the pot not exposed to sunlight. Which of the following percentages of silt would you expect to find in this soil?CorrectIncorrect
A researcher accidentally combined Soils A and B during one of her experimental replicates. She realized her mistake when she compared the dry content percentages to those in Table 1. Which of the following are the percentages of silt, sand and peat (respectively) that she most likely obtained?CorrectIncorrect