Answer:
each nation desires an independent sovereign state
Explanation:
The above is actually true on the reason why they had a political problems. This is because, there will always be differences among them just as they are linked together by a common goal. <em>With time, those problems will widen leading to each nation aiming towards having their own independent sovereign state. This will then lead to political problems for them.</em>
Answer:
The outer core is mostly made out of iron.
Explanation:
To cause the reaction, catalysts use the catalytic cycles, decomposition reactions, and combustion cycles.
<h3>What do you mean by a reaction?</h3>
A reaction refers to the chemical process where substances mutually act and are changed into different substances.
Catalytic cycles refer to the multistep reaction that involves the catalysts. It is considered the main method that describes the major role of catalysts.
Decomposition and combustion cycles are also used by the catalysts.
Therefore, A and B are the correct options.
Learn more about the reaction here:
brainly.com/question/17434463
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True. if the choices are true and false. Hope this helps
Answer:
e. is produced by the absorption of UV radiation.
Explanation:
The thermosphere is a layer of Earth's atmosphere which is directly above the mesosphere and below the exosphere. It extends from about 85 to 500 km altitude above the earth.
In the thermosphere, the temperature is strongly dependent on the level of solar activity. When the Sun is very active and emitting more high energy radiation, the thermosphere becomes hotter by X-ray and UV radiation absorption.
