To test hypotheses, establish laws, and uncover causal relationships.
The correct answer is fuels of War.
There are seven fuels of War in total, and those are: revenge, power, ethnicity, beliefs, prestige, unity, and position. All of these can lead to many conflicts, and even wars if they are not suppressed and treated in time. They 'fuel' wars - meaning that they can elicit aggressive behaviors which may cause wars.
Biosphere is the part of the earth’s surface and atmosphere in which plants and animals can live
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Answer:
Plough is one of the popular farm equipment used to turn the layer of soil, It is also known as primary tillage implements. ... Traditional Ploughs drawn by oxen and horses, but in modern agriculture are drawn by tractors. Traditional plough made with the combination of wooden, iron or steel frame, and blades.
