After death a person stands in connection with his or her activities on earth. Karma is the law of sowing and reaping. So if the person activities was right he or she will be lifted toward the higher regions but if it was negative he or she will sink.
The concept of "after life" is not as applicable to Buddhists as it is toChristians and other Abrahamic faiths. Nirvana the abode of people after they achieve enlightenment (i f the chose not to be reborn) is egoless u. Enlightenment gets you there, karma is not that vehicle.Where karma does get yours an appropriate rebirth based on life activities. This is not necessarily a bad thing as that new life offers learning opportunities which, after countless cycles of death and rebirth, may lead to enlightenment .
Buddhists do not beleive in a heaven or paradise in the afterlife.
Hindus and Buddhists both believe in Reincarnation (punarjanma). Also The Law of Cause and Effect (karma)
According to Mythology if you do good you will gain positive karma. And you will go to Moksha or heaven according to your karma.
The Buddha did not describe the underlying mechanism by which the law of karma (kamma) operates. So different Buddhists can have different opinions on the answer to your question.
Yes they do. Karma is a universal idea that if you do good things, even better things happen to you. They believe that even if you believe in something else, Karma is surrounding you day and night.
Reincarnation is the belive that man will come back to live in earth after death. It is believe that one thing that brings them is karma.
Hindu dharma guides actions towards positive karma by emphasizing moral responsibilities and ethical behavior.
Many Buddhists do believe in reincarnation, but it is not required. No not all of them do.
You Need to feeling your religion
If you follow your Dharma (righteous living) well. And practice ahimsa or Non Violence you will be rewarded for good karma.
They help by donating to charities. They do this because they believe in karma, which means "what goes around comes around."
As the Buddha did not give any teachings on this (it was not a problem in his own time), no Buddhist can speak for others regarding this.