Burial or cremation?
This choice may or may not have been made by the deceased. If not, the executor of the will or the next of kin will have to decide. Funeral directors can offer advice, but the choice may be limited to whatever is available.
Essentially, bodies have to be either cremated or buried (which includes burial at sea). The place and circumstances of disposal are controlled by law, but considerable latitude is permitted. Ashes, for instance, can be scattered in a public place, interred in a family gravesite, or kept in the home.
Another option, which is becoming increasingly popular, is the ecologically friendly 'natural burial'; see the separate article entitled 'Natural or "green" burial'.