Which of the following resources is a conflict mineral used in smart devices? A. neodymium B. tin C. mercury D. quartz

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from