The Effectiveness of Birth Control Methods Are Measured Based Upon

question 8

Multiple Choice

The effectiveness of birth control methods are measured based upon the percentage of women who do not become pregnant during what period of time?

• A)3 months
• B)6 months
• C)9 months
• D)1 year

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Definitions:

Resonance Forms

Various Lewis diagrams depicting the same compound to show the electron delocalization throughout the molecule.

Delocalization Of Charge

The spreading out of a charge over two or more atoms, typically observed with electrons in molecules that exhibit resonance.

Major Contributor

A term often used in chemistry and other sciences to refer to the most significant element or factor in a given process or structure.

Blocking

A technique in experimental design used to remove the effects of confounding variables by grouping subjects that are similar in some way.