Sediments in sedimentary rocks are often . a.
held together with natural cements
b.
formed when atoms of melted minerals rearrange themselves
c.
formed when lava erupts from a volcano
d.
formed by magma trapped below Earth's surface

Please select the best answer from the choices provided

A
B
C
D

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.

yes the answer is total mass in unchanged   : )