Answer:
B. Piri Reis
Explanation:
The Piri Reis map is a world map compiled in 1513 by the Ottoman admiral and cartographer Piri Reis (Turkish: [piːˈɾiː ɾeis]). Approximately one third of the map survives; it shows the western coasts of Europe and North Africa and the coast of Brazil with reasonable accuracy.
Answer:Volcanic activity ranges from emission of gases, non-explosive lava emissions to extremely violent explosive bursts that may last many hours. The types of eruptions determine the relative volumes and types of volcaniclastic material and lava flows, consequently the shapes and sizes of volcanoes.
Explanation:
Answer and Explanation:
Similarities between calcite and quartz
- They are both minerals.
- Although not often, they can both exhibit hexagonal and pyramidal shapes.
- Both are abundant on Earth.
Differences between calcite and quartz
- The property of hardness: Calcite is much less harder than quartz, while the latter is over three times harder than calcite.
- Their chemical composition: Although they are both minerals, their chemical composition significantly differs. Calcite is made from calcium carbonate while quartz is made from silicon dioxide.
- Their shape: The shape is one of the easiest way to identify minerals as you normally don't need to perform an experiment as the case of chemical composition differences. Quartz minerals usually exhibit hexagonal shapes while calcite minerals usually exhibit rhombohedron shapes.
