Answer:
D) Rare-earth elements
Explanation:
Rare-earth elements are elements that are highly limited in supply, may be depleted (used up) within a short time, and are difficult to replenish. Examples include neodymium, samarium, and yttrium.
Paper can be replenished by recycling old papers, while solar energy and water are renewable energy sources because we can not use them up within the foreseeable future.
<span>Exothermic Reaction.</span>
If its a herd of caddle or bulls, Somone on a horse would be riding next to the herd slowing turning the herd back to where they belong
