22. For this LSAT main point question see the final sentence of the passage. Notice the "If" and "may" in the passage, and seek a choice that contains similar language, found in (B).
(A) is extreme - "are". Also, the results do not contain riddled basins of attraction.
(C) states "never" twice, which is extreme.
(D) states "are in fact", which is extreme.
(E) goes against the passage information. Sommerer and Ott's model suggests that the requirement of replication may not be an appropriate measure -- see the final paragraph.
23. See lines 40 to 41. The discussion is made to emphasize that the type of unpredictability in Sommerer and Ott's model is even less than in chaos. Sommerer and Ott's model -- the general direction cannot be determined; chaos -- the general direction can be determined. (D) is the correct choice.
(A) and (B) both refer to "physical irregularities', not unpredictability.
(C) refers to the percentage of the basin, but it's not how much of the basin (percentage) is unpredictable, but rather how unpredictable (degree) the model is.
(E) needs "number of fractal properties" replaced with "degree of unpredictability", and "riddled basin of attraction" with "Sommerer and Ott's model".
24. For this LSAT inference support question, see lines 6 to 8, which support (C).
(A) refers to fractal properties, but nothing in passage refers the possibility of determining whether or not these exist in a region. Rather, fractal properties affect the flow of spilled water -- see lines 23 to 30.
Sommerer and Ott would apparently disagree with (B). See lines 44 to 46.
(D) negates and confuses lines 23 to 28. Compare the passage and the choice:
Passage - Sometimes impossible to predict destination of spilled water on boundary between two basins.
Choice (D) - Usually possible to predict path of spilled water not on boundary between two basins.
However, the passage does not discuss the area not on boundary between two basins.
(E) refers to determining a path after the particle has traveled, but the passage only provides information about predicting a path and/or destination before the particle has traveled. Also, the comparison is between Sommerer and Ott's model and "chaos"; not between a riddled basin of attraction and "chaos".