This is in the wrong section, but each mineral are different because they are made up of atoms and atoms are different from each other. Their differences come from the variability of atoms.
No atom is alike one another because they have different numbers (protons). Hydrogen is 1, Helium is 2, etc. etc. you get it. Every atom has a different chemical composition, therefore altering a mineral's physical appearance, and other characteristics.
Answer:
The government of the country you reside in, as well as the country you wish to visit. You will have to obtain a Visa, which is a government issued pass which allows you to stay in a specific country. You would be getting a <u>student</u><u> </u>Visa which would allow you to travel to a foreign country and study.
Alles Gute zum Geburtstag.
Hope this helps, I learned this when I took German 2 years ago. It's probably the one thing I remember from that class
<span>Er wurde gerne schwimmen. Put two dots over the U! :)</span>
diskutieren das Leben und Wirken Johann Wolfgang von Goethes und die Geschichte Thüringens.
Friedrich Schiller
Thüringer Bratwurst
Stadt, in der BMW Autos baut
Wartburg Weimar
A. Burg, in der Luther Zuflucht fand
B. Eisenach
C. Stadt, in der die deutsche Verfassung nach dem Ersten Weltkrieg entworfen wurde
D. Thüringer Wurstspezialität
E. ein anderer deutscher Autor
