Question

while researching a topic, a student has taken the following notes: the madeira river is in south america. it ranks no. 21 among the longest rivers in the world. it is 3,380 kilometers long. the amur river is in asia. it ranks no. 10 among the longest rivers in the world. it is 4,444 kilometers long. the student wants to compare the lengths of the two rivers. which choice most effectively uses relevant information from the notes to accomplish this goal? a) the madeira river in south america is 3,380 kilometers long. b) the amur river is in asia, whereas the madeira river is located in south america. c) among the longest rivers in the world, the amur river is ranked no. 10. d) the madeira river is shorter than the amur river.

Explanation:

To compare the lengths of the two rivers effectively, one needs to consider key - location and ranking details. Option A only gives the length of the Madeira River. Option B gives the location of the Amur River and the length of the Madeira River. Option C gives ranking information about the Amur River but not directly comparable to the Madeira River's ranking. Option D combines length and ranking comparison, stating the Madeira River is shorter than the Amur River, which best uses relevant information for comparison.

Answer:

D. The Madeira River is shorter than the Amur River.