The answer is 16.75 it rounds to 17 Hope this helps! ;D
Answer:
A substance which burns in air and tends to produce heat and light is known as Combustible substances. Non-combustible substances are certain substances which are not combustible in the presence of air. Will not burn on being exposed to flame.
It contributes by breathing. CO2 is carbon dioxide we breath it out and plants convert it into oxygen.
White blood cells are produced in the bone marrow in the tissue which is inside of the bone cavities.
