Which two parts of sedimentary rock formation include the breakdown and carrying away of existing rock?

Cementation

Erosion

Explanation:

Cementation refers to hardening and welding of those sediments which are formed from preexisting rock fragments as a result of the precipitation of mineral matter in the spaces between the pore. The last stage in the formation of a sedimentary rock is Cementation.

Erosion is the geological process in which soil, rock, or dissolved material are worn away and transported from one location to another location by natural forces such as wind or water.

The two parts of sedimentary rock formation which include the breakdown and carrying away of existing rock are cementation and erosion.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.