Question
Explain about the factors that affect water absorption.
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| Evidence | Possible location of DNA on the evidence | Sources of DNA |
| e.g. Eyeglasses | e.g. Earpieces | e.g. Sweat, Skin |
| Bottle, Can, Glass | Sides, mouthpiece | —————- |
| ————– | Handle | Sweat, skin, blood |
| Used cigarette | Cigarette butt | —————– |
| Bite mark | —————– | Saliva |
| ————- | Surface area | Hair, semen, sweat, urine |