Plz ! i'll give brainliest to whoever answers this along with 15 points!

talc
(asphalt)
gypsum
(fingernail)
calcite
(copper coin)
fluorite
apatite
(knife blade)
feldspar
(steel file)
quartz
topaz
corundum
diamond

which of the substances listed above are pure elements?

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes