indicates

Анализ пыльцы и остатки болотных растений указывают на местное присутствие болот.

third-person singular simple present indicative of indicate

(transitive) To point out; to discover; to direct to a knowledge of; to show; to make known.
(transitive) To show or manifest by symptoms.
(transitive) To point to as the proper remedies.
(transitive) To signal in a vehicle the desire to turn right or left.
(transitive) To investigate the condition or power of, as of steam engine, by means of an indicator.