The stronger the pigment means the more accented the color because pigment cause leaves to look darker in color. Less pigment means less leave color.
A presumptive Test presumes the pet presence of the question substance it is useful because it tells the drug is used false positive is possible meaning that the test result is positive but the substance is not present.
Answer:
Air inside the guard hairs traps heat close to the body, keeping the reindeer warm even in the frigid, windy temperatures of the tundra. The guard hairs also prevent body heat from escaping and melting the snow if the reindeer lies down, keeping it from getting wet and cold.
