The relationship between magnetism and electric current was discovered by
A. Hans Christian Oersted
Correct answer: C. Formation of secret alliances
The other items all fall more into the category of "immediate causes."
Explanation:
Pre-war alliances between European nations were made in secret and elevated diplomatic tensions within those governments. Or sometimes the fact that alliances were being made was announced publicly -- but the negotiations about the alliances were conducted behind closed doors. And often the terms of the alliances were kept secret, so that only the parties involved knew the full details. This business of conspiring and posturing in regard to alliances contributed to an attitude of escalating nervousness and tension as the nations of Europe maneuvered for strength over against their perceived adversaries. This was a fundamental problem that lay behind the ultimate outbreak of the Great War (as World War I was called at the time it occurred).
The answer is actually Complex drainage systems to keep structures from flooding.
Answer:
Military Characteristics
1. Military strength, including the introduction of new military technologies, and their effective use
2. Farming colonies on the empire's periphery
3. visual expressions of the authority of his power, literary and ritual, constructed on a religious basis
Explanation:
Many American Revolution leaders embraced the concept of an empire growing up in a new country. The concept was consistent with a republic; it meant scale and good influence. As early as 1778 David Ramsay, South Carolina's Continental Congress delegate, wrote that the uniqueness of this continent of the Americas was the basis for a world that was to turn into "The Macedonians, Romans, and British insignificance." A popular "empire of independence" was envisaged for Thomas Jefferson, who protected the vast corridors of the valleys Mississippi and Missouri.