Answer:
To study objects that are way too small
Answer: Rhinoceros
Explanation:
Odd-toed ungulates include the horse, the tapir, and the rhinoceros.
Answer: A. Inner Core
Explanation: The inner core is solid, the outer core is liquid, and the mantle is solid/ plastic. This is due to the relative melting points of the different layers (nickel - iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases. Hope this helps :) If not, I am sorry :( If it does, Your Welcome!