Yes, Yizkor (prayer for the dead) is recited on Yom Kippur and on the last day of each of the three major festivals.
Some also recite a short prayer for the dead on Shabbat.
The Jews celebrate Yom Kippur and Hanukkah.
Jews in California celebrate Yom Kippur the same way that Jews the world over celebrate Yom Kippur.
Yom Kippur
They pray to God and ask for forgiveness for sins committed in the previous year.
Jews
Jews don't have churches - they have synagogues, and yes, they go to synagogue during Yom Kippur.
No.
The holiday in question is YOM KIPPUR.
Yom Kippur also known as the days of Atonement is the holiest day of the year for Jews .
Yom Kippur is the day of atonement where Jews ask HaShem to forgive their mistakes of the previous year.
Jews observe the holiday of Yom Kippur, a 25 hour fast with no food or water and a day of prayer.
no