Superposition is the geologic principle which explains why the bottom stratum in a section of rock is the oldest. The word literally means placing one thing on top of another where the lower strata are the older.
Science, if its not that, its engineering
Our planet, Earth appears blue due to the mass amounts of water and lacks on its surface.
Taiga is the largest Continental Biome. It experiences long, cold winter; short, mild summers; and low precipitation. It is characterized by Coniferous forests. It covers most of the Southern Hemisphere.
The tool that would be most useful to him would be a seismometer. It is an<span> instrument that measure motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions. Hope this answers the question. Have a nice day. </span>