Which of the following could be considered an example of physical contamination? O Pesticide contamination in food
• Copper leeching into food during the cooking process
A bandage falling into a prepared dish
✓ Sanitizer getting onto a food product during preparation

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

Answerionic bond imfs are stronger than covalent;

H tricky one let me think and get back to u

Answer the air near the ground cools to its dew point