D. the student's conclusion shows experimental bias
An investigator can collect hairs they observe visually (with tweezers or by hand), and they can also use clear tape to lift non-visible hair from a variety of surfaces, such as clothing. Other methods of hair sample collection include combing and clipping methods.
It is false, the atomic number is the number of protons and/or electrons in an atom on an element.
There will be chemical reaction(equation4Na+02--2Na20
Answer:It got to be C
Explanation: 75ml of water is
