The police are now monitoring criminal/gang/drug 'activity' in the area.
There has been an increase in the city's (level of) economic 'activity'.
The instruments are used to detect volcanic 'activity' on the island.
(..) And I'm trying to throw this little guy off. "Get off. Stop ******* my leg." This above all is a family film... ...and any depictions of perverse sexual activity... ...could only be described as educational. The whole world's gonna see me beating on a little man who's humping my leg. Peter Jackson, (..)2012 The Hobbit: An Unexpected Journey