The average age range is 47 to 55 years. Those who start menopause before age 45 are considered to have early menopause, while those who begin before age 40 are said to have premature menopause. The entire transition takes between four and five years, and during this time women can still get pregnant.he average age range is 47 to 55 years. Those who start menopause before age 45 are considered to have early menopause, while those who begin before age 40 are said to have premature menopause. The entire transition takes between four and five years, and during this time women can still get pregnant.
Submit. American woody plant expert Dr. Michael Dirr of the University of Georgia says that the burr oak (Quercus macrocarpa) is adaptable to many types of soil that do not flood.ubmit. American woody plant expert Dr. Michael Dirr of the University of Georgia says that the burr oak (Quercus macrocarpa) is adaptable to many types of soil that do not flood.
Most oak trees prefer acidic soil. Oak trees have a well-deserved reputation for being hardy and durable, but like all trees they are susceptible to a number of potential problems. Oaks thrive under specific growing conditions, and high pH is one issue that can cause damage to these trees.ron Chlorosis. Chlorosis occurs when a plant lacks sufficient chlorophyll to carry out photosynthesis. One particular type -- known as iron chlorosis -- is often caused by iron deficiency due to high soil pH in the oak tree's soil. Chlorosis causes yellowing of the leaves.