D.
because that can only be the answer
Answer:
the specific shape of letters, e.g. their roundness or sharpness.
regular or irregular spacing between letters.
the slope of the letters.
the rhythmic repetition of the elements or arrhythmia.
the pressure to the paper.
the average size of letters.
the thickness of letters.
Answer: Fireworks exploding is a chemical change.
Explanation: Lighting gunpowder, and making the explosion is a chemical change.
Set a piece of pH paper in front of each solution before testing to keep organized.
Use a transfer pipet to remove a few drops from the solution to drop onto the paper.
Wait a minute or so before reading color.
Is the correct answer...
