Characteristics of human hair such as length, curliness, density, and color are some of the different factors in classifying human hair. Hair can also be classified as to where it grows (such as terminal and vellus hair), and when it grows (like lanugo hair for infants in the womb).
state of steady internal conditions maintained by living things.
Hybrid car batteries contain the rare elements neodymium and lanthanum. These substances are D. recyclable and nonrenewable. The batteries have a label on the bottom or the side indicating whether it is recyclable or not. The batteries that are recyclable are stripped of their electrolyte and electrodes in a recycling plant. These two rare elements are then extracted out from the electrolyte and recycled for use.
