Answer:
look up chemical board it will help you
Explanation:
Ernest Shackleton's South! primarily uses the writing structure of "problem and solution".
A way of building knowledge about the world around us through observation and experimentation.
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.
Answer:
I think the answers are... b, d, and maybe a. I don't know for sure. So only put these answers in if you trust me!
Explanation:
I had this very question, and I put in what I think were the answers.
