The students examine sediments, linking historical changes in the watershed to materials in the sample (sawdust from lumbering, sand from urbanization).
(The students; examine; sediments; linking historical changes in the watershed to materials in the sample) Context(The students examine,List([0, 20))):(The students; examine sediments linking; historical changes in the watershed)
The students examine,List([0, 20))
The students The students
examine examine sediments linking
sediments linking historical changes in the watershed to materials in the sample
historical changes in the watershed