Continental roots stress Earth's surface. FULL STORY. The Earth's rigid lithosphere varies laterally in thickness and strength. Areas of thicker, older lithosphere known as continental roots penetrate deeper into the mantle in some places under continents.
A monoblock is a type of amplifier used in car audio systems. What  the monoblock type of amplifier does is to split the two channels  of audio into two separate mono systemâ¦s, giving a little more kick  to the bass coming out of subwoofers.
The sleek, new design of the SuperEar Plus personal sound amplifier is ideal for slight to moderately hearing impaired. New Super Ear Plus increases ambient sound gain 50+ decibels and picks up sounds up to 100 yards away using a multi-element, high sensitivity 90 degree swiveling microphone.