The correct answer is the Richter scale
Mercali is used to measure damage created by the earthquake, while the remaining two are not scales of measurement.
Answer:
a documentary about the holocaust
Explanation:
documentaries contain primary sources like pictures and videos however they are interpreting them so they are typically not seen as a primary source as a whole
Oil still plays an important role in the global economy despite the continued efforts to reduce its use and to find alternative green energy sources. In the early days, finding oil during a drill was considered somewhat of a nuisance as the intended treasures were normally water or salt. It wasn't until 1847 that the first commercial oil well was drilled in the Absheron Peninsula, Azerbaijan.1 The U.S. petroleum industry was born 12 years later, in 1859, with intentional drilling near Titusville, Pennsylvania. (Drilling in the United States began in the early 1800s, but they were drilling for brine so any oil discovery was accidental.)2
The answer would be <span>Cattle</span>
