Manipulating sf objects (2)

nc_union <- st_union(nc)
nc_union
## Geometry set for 1 feature 
## Geometry type: MULTIPOLYGON
## Dimension:     XY
## Bounding box:  xmin: -84.32385 ymin: 33.88199 xmax: -75.45698 ymax: 36.58965
## Geodetic CRS:  NAD27
## MULTIPOLYGON (((-75.97629 36.51793, -75.97728 3...

class(nc_union)

## [1] "sfc_MULTIPOLYGON" "sfc"