Answer: Anesthesia
Explanation:
Anesthesia was used in 95% of Civil War surgeries. Sulfuric ether had been discovered in Europe in the 1830's and was first used as an anesthetic by William Morton in 1846. After a successful public demonstration it became widely used in surgery.
I am not a college student, I am a Freshman in High School but if I were in college this is what I would say:
In college the GPA of the student is very important and it helps a student obtain good colleges and courses in this regard.
Answer:
Bacterial
Explanation:
Antibiotics work against bacteria.
Explanation:
To unravel and understand the importance of fossils in rocks, the principle of fossil and fauna succession gives an amazing insight.
The principle of fossil and fauna succession suggests that "fossils and fauna succeed one another in a defined pattern".
Using this principle we can place sedimentary rock layers into their perfect place and stratigraphy.
Fossils are good indicators of the age of the strata in a sequence based on the principle of fossil and fauna succession.
They are best used in relative dating of rocks.
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Answer:
due to the continental drift
Explanation:
The theory of continental drift states that Earth's continents moved over time (i.e., they have drifted across the Earth's surface over time). The theory of continental drift was proposed by Wegener in the early 20th century. This theory has been incorporated into the idea of plate tectonics, a theory that describes the movement of seven large plates on Earth's lithosphere three billion years ago. The discovery of an extinct Permian order of seed ferns (i.e., Glossopteridales) in the Antarctic continent is nowadays considered as a proof that continents were once joined and moved over time.
