Explanation for Question 25 From the Reading Section on the 2019 October Sat
The 25 asks the passage most strongly suggests that there is a relationship between 2 the presence of planted or plants, 3 Ruta near rivers and which characteristic of those rivers. 4 So if the passage is strongly suggesting something, 5 the answer to this is going to come pretty directly from text evidence. 6 It might require a little bit of inference or analysis, 7 but not much at all. So if we look back into the passage, 8 we can find evidence supporting the answer to this question, 9 starting in line 33. 10 So this section says, but at the time separating this Alerian and Devonian periods, 11 some 420 million years ago, 12 the picture found in preserved sedentary, rock changes. 13 The blankets of unconsolidated sediment found in earlier river deposits appear less frequently. 14 It happens just as evidence of land vegetation with root systems also expands in 15 the rock record. In addition, 16 more complex and diverse river remains emerge, 17 including more traces of mud, probably due to the enhanced chemical weathering that plants 18 assist smaller size sand grains and samples of organic remains significantly 19 shapeshift too. 20 So what these lines are outlining is the relationship 21 between having plants rooted near rivers and the size of the 22 sediment found kind of on the banks of those rivers. 23 So you can see here that in early rivers. 24 So the blankets, 25 yeah. Early river deposits and you have unconsolidated sediments. 26 So unconsolidated sediment is just g...