Answer:
The correct answer is B. They are a collection of minerals or a body of glass.
Explanation:
The study of rocks needs the observation of their characteristics; its characteristics depend on the properties of the minerals that compose it, its relative amounts and the way in which these were joined to originate the rock. Texture is the external appearance of any rock. It depends on the shape, size and internal arrangement of mineral crystals. Each of these characteristics maintains its specific properties (chemical and physical) in the rock as a whole.
In a rock we can distinguish two types of minerals:
Essential minerals. They are the ones that constitute the nature of the rock and give it its characteristics and properties for being in greater proportion. The lack of one of them would result in the formation of a different rock with different properties.
Accessory minerals These are minerals that appear occasionally in very low proportions within the typical composition of a particular rock. Its presence does not alter the basic characteristics of the rock.
Answer:
a.inductive
Explanation:
inductive approach- preferred by Lazarsfield, approach to theory construction that sees research beginning w/empirical observation not speculation.
Inductive approach, also known in inductive reasoning, start with a set of observations and then they move from those particular experiences to a more general set of propositions about those experiences. In other words, they move from data to theory, or from the specific to the general.
The "near abroad" is the way the Russian politicians refer to the countries that gained independence after the collapse of the Soviet Union; such as Latvia and Ukraine.
They all have a Russian minority (of the Russians who emigrated there when it was a Soviet Republic) and the Citizens of those countries often speak Russian as a foreign or native language.
Also, they often have close ties to Russia, such as trade ties due to both the geographical proximity and to the infrastructure which was established while they were a part of the Soviet Union
The answer is C. The depopulation of the Americas, the overall effect was a decreased population growth worldwide.
Americans had never had diseases like smallpox, measles, whooping cough, among others, for that reason, they did not have defenses against them, when there was the interchange with the Europeans, there were a lot of deaths, which caused a big decreased in the population and in world general, because native people could not fight with those diseases.
Answer:
D. The people of Middle America realized they could grow crops for a more reliable food supply.
Explanation:
Before settling down, people in the middle America relied on hunting and gathering plants as their main methods to obtain food supply.
But, this method was extremely unreliable. They had to constantly move from one area to another due to climate changes or decrease in animals population.
After settling down into villages, they started to adopt agricultural practices to obtain their food supply. This methods are way more reliable than hunting/gathering since they don't have to move and they can stock their supplies into their warehouse before winter.
