Constructive forces are responsible for the formation of landmass on the surface of the earth. These are the forces that form continents on the earth' surface. Some of the constructive forces are volcanic eruption, earthquakes, deposition of sediment, etc.
Example: Chemical and mechanical weathering are responsible for the formation of soil by breaking down the rock into smaller pieces.
You know that mRNA does not have thymine(T) in it. Instead it has uracil(U). So adenine(A) pairs with uracil(U) and cytosine(C) pairs with guanine(G). I hope that helps!
