Answer:
C. A stretch of raised land, often built to help control flooding and the flow of a river.
Explanation:
Embankments are made typically of construction adjacent to the river from spoil excavated from its bank.
Water!!! (H2O) ........... :)
Answer:

Explanation:
X + Y ⟶ XY
mass: 22.7 g x 86.9 g
According to the Law of Conservation of Mass, the mass of the product must equal the mass of the reactants.

Answer:
Acid: HSO4-
Base: NH3
Conjugate Acid: NH4+
Conjugate Base: SO4-2
Explanation:
HSO4- gives a H+ to NH3 making NH4+ the conjugate acid.
Same can be said to the base.