The effects of acid rain are most prominent in aquatic environments such as lakes, rivers, creeks and marches. However, acid precipitation is increasingly damaging forest ecosystems through the leeching of soil nutrients and weakening of trees' natural defenses.
An aspiring surgical nurse who seeks a more thorough education might pursue a Bachelor of Science in Nursing, a 4-year degree program that includes two years of supervised clinical practice in a hospital or another healthcare facility.
Surgeons can be in a residency program for 4 to 5 years. Once you are in a residency program you can specialize in your chosen field. So the total time to become a brain surgeon or Neurosurgeon, not counting high school, is roughly 12 years.