*the rest of my points + brainliest! * what can be done to reduce the risk of earthquake damage in tectonically active regions?

You need to make the buildings more flexible like use wood or steel instead of brick or concrete cause they are not flexible. Build triangle structures because triangles are the strongest shapes. You can add a mass damper on top of the building and an active tendon system on the bottom of the building because it will shift the weight around making the building steady. Also install base isolators underneath the sand. Base isolators will absorb the seismic waves. Base isolators are made if layers of steel and rubber wrapped around a lead core. It will prevent the waves from traveling through the building. You can also put flexible pipes which will prevent the pipes from breaking. If it breaks, waterlines and gas lines will leak

Making thing safer than they are because people don't realize that they make more damage than thinking of doing.. hope it helps you

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].