Copiapó has a diversified and potential economy, but mining is the largest economic activity.

This march was the Club's largest activity and faded quickly thereafter.

Government in Silver Valley was not a large or important activity.

The largest sustained activity by heads in primary schools is said to be teaching.

Like any large industrial activity, bridge building can be brutal.

He tried ceaselessly "to foster in us a larger activity.

This has led to commerce being the largest economic activity in the municipality.

During very large activity, however, this heat input can increase substantially, by a factor of four or more.

Of these, four are currently being monitored for large mammalian activities.

The fodder production is largest agricultural activity in the region.