The altar boy usually wears a black cassock (floor length robe with buttons down the front) with a white surplice over it, although occasionally you will see them in white albs with cinctures.
The priests are trying to figure out how to remedy the plague
This could be an altar boy, a deacon, a secretary or a rector.
The priest and deacon prostrate themselves before the altar at the beginning of the Good Friday services as a sign of deep reverence and of deep anguish for the suffering Christ.
I can give you several sentences.The church committee decorates the altar with fresh flowers every Sunday.The prehistoric building had a sacrificial altar in the center.The priests laid the sacrifice on the altar.
Because the temple was destroyed along with the altar, and so we replace sacrifice with prayer
Oedipus instructs the priests to remove their branches from the altar, signaling an answer to their request for deliverance from the gods' curse.
During the Mass, the only people who should approach and then enter the Sanctuary, in which the Altar is located, are priests, acolytes, and deacons (basically people who are assisting at the Mass). However, Catholics when receiving communion do approach the Altar area but do not enter into it as the priest stands in front of the Sanctuary to distribute communion.
It is a long white robe that goes down to the ankles, it is worn by priests, deacons, bishops etc. and not very oftenly worn by altar servers as well.
An altar is actually called "the altar", although if there are many altars in a Church, they may be called by a specific name, like the main altar, the high altar, the side altar, the Blessed Virgin Mary altar, the altar of repose, the Blessed Sacrament altar, the St. Joseph altar, etc.
As an altar server, I have seen vestments of the colour: -Red -Black -Green -White -Violet -Purple -White with an imgae of Mary on the back
Deuteronomy 26:1-3 and following verses describe a ritual in which everyone will give the best produce from their land to the priests, who will place it in front of the altar. This of course means that the priests will be well fed and treated with the highest respect by the ordinary people.
They are usually deacons. The children who assist are called altar severs.