Read the following sentences Sedimentary rocks begin as sediment at the bottom of rivers, lakes, and oceans. Sediment is made of small pieces of sand, clay, and shells. The weight of water presses down on the sediment until it becomes hard* Based on this information, what can you conclude about sedimentary rocks?
A
All sedimentary rocks are found far from water
B
Some sedimentary rocks have shells in them
С
Sedimentary rocks are harder than igneous rocks
D
All sedimentary rocks are very soft

lol for the pointsss

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.