A form of collective social behavior that persists over a long period and gradually finds place as a tradition is called a custom. Examples:
Drinking a glass of wine with each meal--French custom (although that might changing due to economic woe and other variables)
Saying a prayer before each meal--Latin American custom (although it's a custom in other places too, and not every Latin American does this)
During the twentieth century, the study of the large-scale structure of the universe evolved from the theoretical to the practical; the field of physical cosmology was made possible because of both Einstein's theory of relativity and the better ability to observe extremely distant astronomical objects. Option A is correct.
Albert Einstein formulated two theories which he included to his theory of relativity. On the one hand the special relativity and on the other hand, general relativity.
The former refers to the lack of gravity and the physical phenomena that occurs because of it and the latest refers to the law of gravitation.
<span>Heart disease includes all of the following risk factors except regular exercise.</span>
The ninety five theses was written by Martin Luther
during the protestant reformation, in response to the Pope as to reforms for the church, against the selling of indulgences
