I understand the war is the World War I. The assassination (of Austrian Crown Prince Franz Ferdinand) led to the Ultimatum (from Austria to the Kindom of Serbia) and the rejection of this ultimatum by Serbia led to Austria-Hungary declaring war (into which later other countries joined).
Answer:
Described the passage of the blood from the right heart through the lungs to the left heart and used the term “circulation” to describe this process. He discovered the valves in the veins. He noticed that the blood cannot move from the heart toward the periphery through the veins
Answer:The rare fossil casts form when a mold fills with material, such as sediments or soluble minerals, and creates a replica of the original organism. A cast can be compared to putting Jell-o into a mold and letting it set; the removed form is a cast of the mold.
Although mold fossils and cast fossils seem the same, they're different. While the mold forms the outside of an object, the cast is formed from within the mold. A good way to understand the difference is to compare ice to the tray holding the ice. In other words, the tray is the mold and the ice is the cast
Explanation:The rare fossil casts form when a mold fills with material, such as sediments or soluble minerals, and creates a replica of the original organism. A cast can be compared to putting Jell-o into a mold and letting it set; the removed form is a cast of the mold.
Answer:
b. Brazil
Explanation:
A superpower is a country that holds a great influence in the international arena due to a great political, economic, scientific, and military power. An important requirement in order to be a military superpower is the possession of nuclear weapons, because of the deterrence power that these weapons bring in international conflicts. In this sense, Russia, China, and India fulfill those requirements, the three of them have nuclear weapons and are big military powers, and the three of them excerpt a great influence in the international arena thanks to their advance and powerful political and economic resources.
On the other hand, while Brazil is a regional power in South-America because it has the largest economy and the strongest military in the region, it lacks the possession of nuclear weapons. Also, Brazil is subject to the political and economic instability that weakens its power of influence in the wider international arena. For all these reasons, Brazil cannot be considered a contender for superpower status today.
