Catholicism is the original Christian denomination, while Zen is a Buddhist sect.
Catholicism is a revealed religion that believes that God, Himself, came to earth, revealed Himself fully in the person of Jesus Christ. Taoism is an ancient philosophy, ethical system, and religion in China.
There is no "regular" Buddhism. There are a number of schools of Buddhism. Zen is one school that originates from Japan.
The primary difference is the belief and respect for One God(Allah) vs. The trinity. Please see the Related Question below on the differences between Christianity in general and Islam. Most of those differences also apply to Catholicism and Islam.
There isn't too much religion in either country. Japan has Shinto and Zen Buddhism and Scotland has Presbyterianism, the Episcopalian Church and Catholicism.
The most important difference between Catholicism and Protestantism, although there are many, is the fact that Protestantism does not believe that the Eucharist is the Body, Blood, Soul and Divinity of Jesus Christ, but believes it is only a remembrance.
One difference between Mormonism and Catholicism is that while Catholicism only has one sacred text, The Bible, Mormonism has a few including; The Bible, The Book of Mormon, The Doctrine and Covenants and The Pear of Great Price. Another difference is that Mormons believe that The Holy Trinity are three distinct beings while Catholics believe that they are one.
A Catholic is one who practices Catholicism.
There is no difference between the two as Catholicism is the full expression of the Christian Faith as Christ intended when he set up his Church. Now, there is a difference between what is commonly know as a "Christian" in protestant terms and a Catholic (Christian). The differences are significant. The first: the Sacraments which Christ instituted. The second: the fullness of Faith in the combination of Scripture and Tradition (2 Tim. 2:2, 2 Thess. 2:15). The third: Apostolic Succession which is an unbroken chain of successors going back to the Apostles. There you have it three differences. Remember, the choice is yours - do you want the whole cookie or just half?
If the question is "What is the reason for the death of Zen" - Zen is a viable philosophy around the world today, it is not "dead" If the question is "What is the reason of death in Zen" - Zen has no reason for anything, things simply "are". In the case of death, it is the partition between one re-birth and the next until enlightenment is attained.
Roman Catholic AnswerThere is no way to compare Christianity and Catholicism as they are one and the same thing.
Genetic differences
What are the differences between polycarbohydrate and polysaccharide?
differences between now and then 1905s