A geologist conducts an investigation to determine the absolute age of a fossil. She then repeats the procedure three times. Which BEST explains why she repeated the procedure
several times? (SC.6.N.1.1)
It helps her develop better procedures
It improves the accuracy of the results.
She wants all the results to be different.
She has more than one hypothesis to prove.

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o