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.
Since it can transmit only a single audio signal, a mono amp is not suitable for stereo music. Instead, a mono amp can be used to deliver power to a single signal speaker, typically a subwoofer that produces low frequency sounds that can be felt as much as heard.