Answer
The Rocket Technology
Explanation
Konstantin Tsiolkovsky was the Father of Modern Astronautics who in 1898 first proposed the idea of space exploration by rocket. In his first report he suggested the use of liquid propellants for rockets in order to attain a higher range. Early in the 20th century, Robert H. Goddard an American published a pamphlet attaining higher altitudes in rockets with a mathematical model called the meteorological sounding rocket.
The correct answer for this question is this one: "2. appointed his own archbishops"
Pope gregory VII do to change the balance of power in the medieval period is that he appointed his own archbishops. In this way, he have to decide carefully.
Hope this helps answer your question and have a nice day ahead.
Explanation:
Along these trade routes, merchant communities developed. Muslims controlled parts of the western silk road and were influential on trans-Saharan trade routes. They also were powerful entities in maritime trade in the Red Sea, Persian Gulf, and Indian Ocean.
I think both it's all of them except : <span>C. Commissioned the creation of many sets of laws called Justinian's Rules that no one in the future would us a model
Justinian rule became the first codex that emphasizes law supremacy over the nobility. It actually used by a lot of democratic countries as a model for our constitution.</span>
