The answer is.d. stromatolites hope it help
Oxygen has a partial negative charge, whereas hydrogen had a partial positive charge.
This means that water molecules are polar and can be used to dissolve a lot of chemicals, that's why water is such a popular solvent.
Answer:
chemicals are expelled from the white blood cells into the wound site, and this is what causes the redness and warmth.
Explanation:
Stressor due it comes from an external condition or event.
