Answer:
D) Each solar system contains billions of galaxies
Think, there are no other galaxies from the sun to Pluto (not a planet but still in our solar system) and the answer said EACH solar system and, a Galaxy contains solar systems not the other way around.
Answer and Explanation:
Mahabharata says that royalty is necessary to create a sense of belonging to the people, in addition to creating religious and civil unity in a territory. This is because royalty determines the rules to be followed to create the organization of the society, in addition to representing a religion that must be followed and promoting faith and hope for its people. This kind of importance can also be seen in Egyptian royalty, with the difference that in Egypt, royalty did not represent a religion, but was seen as the very god of his people. An author who decides to tell this story, seeks to show readers how royalty can have different meanings in different cultures and regions.
Answer:
The coal-fired steam engine was soon developed. It became the key technology of the Industrial Revolution. In preindustrial Europe, water power was widely used as a source of energy. By the late 1700s, however, steam engines had been perfected
Answer:
Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel (for automotive uses), ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy.
