C. Solids.
Because for what i know, particles of a solid are hard to separate as there are strong intermolecular forces holding them together
The paper bags are less harmful than plastic bags because paper bags are made from the tree which is from nature.
<h3>What is plastic?</h3>
Plastic is a unnatural substance. It is bio degradable. The plastic is make stronger by the use of radiation.
The paper bags are made by hands. It contains no processing. While the plastic bags are modified in machines. They involves the use of harmful radiation.
Thus, the paper bags are less harmful than plastic bags.
Learn more about plastic.
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The dependent variable in Shakita's experiment is the difference in pH every day she measures the open soda can.
Answer:
When conducting research, scientists use the scientific method to collect
measurable, empirical evidence in an experiment related to a hypothesis (often in
the form of an if/then statement), the results aiming to support or contradict a
theory.