Which type of wall would make the best soundproofing for room? a. 1. 0 centimeter thick glass b. Two layers of 0. 5 centimeter thick glass with 0. 5 centimeters of air between them c. Two layers of 0. 5 centimeter thick glass with 0. 3 centimeters of vacuum between them d. 1. 0 centimeter thick steel.

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same