The preposition in English plays an important role, to connect words and it might express different meanings, as noticed in “Can we stop it, weakening by 2050?"
Mark the statement which presents the correct use of prepositions.
Weather conditions have been changing over the years.
Antarctica's current has influence at several aspects.
The reference we find depends of some dolphins.
The author alerted the consequences with global ocean.
Biologists usually take care for nature.