Question

the instrument that records earthquake events is called a ____________. * 2 points
seismograph
polygraph
thermograph
barograph
the lithosphere is defined as _________. * 2 points
a rigid layer of crustal and mantle material
a rocky layer composed mainly of crustal rocks
a rocky layer having a relatively uniform chemical composition
a plastic layer composed mainly of mantle material

Explanation:

• For the first question, a seismograph is specifically designed to record earthquake - related ground motions. A polygraph is used for lie - detection, a thermograph for measuring temperature, and a barograph for recording atmospheric pressure.
• For the second question, the lithosphere is defined as the rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle.

Answer:

1. A. seismograph
2. A. a rigid layer of crustal and mantle material