Surface and Aquifer Freshwater Sources Hold What Percent of the Earth's

question 31

Multiple Choice

Surface and aquifer freshwater sources hold what percent of the Earth's total water?

• A) 2%
• B) more than 97%
• C) 10-12%
• D) less than 1%
• E) 20%

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Definitions:

Perimenopause

The transition period before menopause marked by changes in menstrual cycles and hormone levels.

Menopause

The termination of the menstrual cycle due to the normal aging of the ovaries.

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The calculated date on which a baby is expected to be born, often determined by the date of the last menstrual period or an ultrasound.

Last Menstrual Period

The first day of a woman's most recent menstrual cycle, a date used as a starting point for calculating a pregnancy's gestational age.