That there are such places on Earth where the Sun stays above the horizon for that long and then stays below the horizon for that long is because the Sun is not always above the equator of the Earth, because the rotation axis of the Earth does not make a right angle with the orbit of the Earth around the Sun.
Dear lizme66: Scattered fibroglandular densities means that you have areas of dense breast tissue. This is very common in young women but can remain in some women even after menopause. An asymmetric density means that there is something on the mammogram that does not look quite normal.ear lizme66: Scattered fibroglandular densities means that you have areas of dense breast tissue. This is very common in young women but can remain in some women even after menopause. An asymmetric density means that there is something on the mammogram that does not look quite normal.
Breasts are composed of fibroglandular tissue and fatty tissue. Dense breasts contain more fibroglandular tissue than fatty tissue. Approximately one-half of women have dense breasts. Women cannot tell that their breasts are dense simply by touching them.Breast density is revealed on a mammogram. Women with fibroglandular tissue composing more than 75 percent of their breasts were nearly five times as like to develop breast cancer than women with fibroglandular tissue composing 10 percent or less of their breasts, according to a study published January 2007 in The New England Journal of Medicine.