Species.
The answer for that is easy to find on google. You should have just googled it.
<em>Elijah Muhammad overcame to be the leader of the black separatist religious movement known as the Nation of Islam (sometimes called Black Muslims) in the United States. Elijah Muhammad relaxed the strict dress code, abandoned resistance to military service, encouraged members to vote and to salute the flag, and even opened the movement to whites. In general, he made the movement much more conventionally Islamic.</em>
<em>Hope this helps~</em>
<em>*Tyler the Creator*</em>
Normal polarity
Explanation:
Earth's magnetic field used to be twice as strong 1.5 billion years ago as it is today and Earth's temperature other than what the geologists see from the 'normal' pattern. It has been noticed that some volcanic rocks were magnetized in opposite direction to the direction of the local Earth's field. It is clear that the Earth has experienced the normal polarity 1.5 years ago but at that time, the Earth's polarity was poorly understood.
It is A both chemical changes and flow of energy