There were two races of gods in Norse mythology: Aesir and Vanir.
If by "Race" you mean skin colour; the Norse gods were caucasian. There were no dark skinned peoples living in Scandinavia at the time. Otherwise, the Norse gods, as a race were called the Aesir.
The Norse gods fell due to Ragnarok which was a series of events sending in a giant battle in which the major gods were killed.
The Old Norse were polytheistic (from the Greek polymeaning "many" and theos meaning "god", thus "many gods"). This means that they believed in and worshipped many deities.These deities are split into two tribes, the Æsir (pronounced "EYE-seer") and the Vanir (VAHN-eer). The Æsir are the gods of craft and human society, whereas the Vanir are the gods of fertility and magic.The most famous deities in Norse mythology are Óðinn, Þórr, Týr, Freyr, Freyja, Frigg, and Loki.
Norse mythology is quite complicated, but the main enemies of the Norse gods were the Frost Giants. There is also one Norse god named Loki who was working against the interests of the other gods; probably he was the single greatest threat.
Asgard was the home of the Norse gods worshipped by the Viking warriors. Vikings believed in a pantheon of gods that lived in Asgard and influenced their lives and battles.
The Vikings worshipped the Norse Gods. Some of the key gods were Odin, Loki, Thor, and Balder, just to name a few.
Frigg, sometimes anglicized to Frigga, was the wife of the god Odin in Norse Paganism. People of the Asa-religion (Norse mythology) lived in the time of vikings, around 1000 AD. This means the people who worshipped Frigga (and many other gods) were the vikings.
The Norse gods were worshipped for the same reason any gods were worshipped. Ancient people made up stories to explain what caused natural phenomena like lightning. The simplest explanation is that some powerful but humanlike person is up in the sky throwing the lightning bolts. Then other stories are added to answer other questions like where does he get the lightning bolts, who is he married to, where did he come from, where did people come from, etc. People worshipped these "gods" in the hope that they would not harm the people or that they would have a good hunt or a good harvest or would receive some other benefit.
Yes, the Vikings were the Norse "pirates".
Odin is generally considered to be the leader of the Norse gods.
Norse gods were broken in to Aesir or Vaenir.
there were different ways in which the gods were worshipped
Odin is generally considered to be the leader of the Norse gods.
That Woden (Odin) was king of the Norse gods.
There were two races of gods in Norse mythology: Aesir and Vanir.
Polytheists were people who believed in and worshipped multiple gods and goddesses. This belief system was common in ancient civilizations such as the Greeks, Romans, Egyptians, and the Norse.