Who are the presiding officers over the Texas State Senate and the Texas State House of Representatives? What are their respective duties and responsibilities

As water is cooled from 4 c to 0 c its density

Which two nations are doing the most to combat their environmental issues?

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.