Answer: Between about 47,000 years and 9.8 billion years after the Big Bang, the energy density of matter exceeded both the energy density of radiation and the vacuum energy density.
Explanation:
The battle you are referring to is actually called the Battle of the Ironclads. In this battle, it was the Merrimac (from the Confederacy) versus the USS Monitor (from the Union). This was the first battle between iron-fortified vessels in the Civil War. This battle ended up in a draw but represented a new form of fighting that both the Union and Confederacy had to be ready for.
The correct answer is Primary sources are first-hand accounts of events or time periods in history
The research project is characterized as an action to be developed, necessary in turn, and which foresees everything that will be developed through the research, that is, in it the researcher reveals his main intentions, explains the focus, the direction that the it will guide, express his real interests and highlight the questions that prompted him to proceed this way or that.