I think maybe reptiles bu i could be wrong. :)
The answer is D)
<span>when the remains of a living thing are preserved and turned into rock
</span>
NaCl is made of Na and Cl
The molar mass of Na = 22.989 g/mol
The molar mass of Cl = 35.453 g/mol
Molar mass of NaCl = 22.989 + 35.453
= 58.44 g/mol
Answer I'm not quite sure if this is right, but maybe it's because Jessica put her thermometer deeper in the stream, and Javier put his more up.
Explanation: