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The four states of matter are solid,fluid,gas,and plasma.
Barrier Methods
Forms of contraception that prevent sperm from reaching the egg by creating a physical barrier.
Contraception Use
The practice of employing methods or devices to prevent pregnancy as a part of family planning.
Fertility Awareness-Based Methods
Natural family planning techniques that involve tracking a woman's fertility signs to avoid or achieve pregnancy.
Discontinuous Innovation
Innovations that create major changes in how we live and work by introducing products or services that drastically alter the market.
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