Answer:
The unification term refers to a state formation.
Explanation:
The term unification refers to unify or join more than one state. It is a nation-state formation and involves bringing together various states into a single nation. Germany and Italy are part of the unification of several states. The Unification of Germany and Italy were part of the nationalism that began to emerge in the 19th century. The Unification is only possible through having the same culture, religion, culture and language in all the small states.
C
Given that the World population changed little between this time, we can gather than the birth and death rates were similar, since they seem to cancel each other out from 1200-1400. To clarify, think of this. If you add something to a total (think births to population), but take away the same number (think deaths from population) you end up with the same total as before. Because of this, A is the correct answer choice (The birth rate and death rate were about equal).
Hello! Polar climate is in North & South Poles, where the weather there is extremely cold. Just by looking at the answer choices alone, A and B are both eliminated, because it is not hot, warm, or humid. Plus, the weather described in those answer choices does not fit at all. D is out as well, because the weather does not vary in the poles. It is very cold year-round. The only answer choice that even makes sense in this problem is C. Therefore, the answer is C.
A) Refraction
B) Erosion
C) Reflection
D) Diffraction
E) Isostasy
Answer: B) Erosion
Explanation:
Erosion is a natural phenomena in which the top layer of soil or any other sedimentary material gets removed by the action of the physical agents like water, wind, and others.
According to the given situation, the waves will break the shores those which were facing the southeast. Thus the Island will get disturbed by the phenomena due to erosion.
Answer: Oxygen
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Respiration is the use of oxygen to produce energy. Oxygen, or

, is also created as a by-product of photosynthesis during the light-dependent reactions. The photolysis, or breaking down of water, H2O, during photosynthesis, created oxygen as a by-product.