Earth Motions
At which latitude would Polaris be observed at an altitude of 41°?
What is 41° N?
What weather variable is represented by isobars on a weather map?
What is air pressure?
Which mineral is commonly used as the standard for hardness 1?
What is talc?
Which seismic wave travels fastest through Earth?
What is a P-wave?
Which index fossil is characteristic of the Devonian Period in New York State?
What is Mucrospirifer?
The Earth rotates through approximately how many degrees in 4 hours?
What is 60°?
As the difference between air temperature and dew point decreases, the relative humidity generally does what?
What is increase?
Which property is tested when a mineral scratches glass?
What is hardness?
Which seismic wave cannot travel through Earth’s outer core?
What is an S-wave?
According to the ESRT, what is the age of the Devonian Period?
Approximately 419–359 million years ago.
On which date is the Sun directly overhead at 23.5° N latitude?
What is June 21?
Which type of air mass forms over northern Canada?
What is continental polar (cP)?
What metamorphic rock forms from shale?
What is slate?
At which plate boundary is new oceanic crust created?
What is a divergent boundary?
Which agent of erosion formed the Finger Lakes?
What is glacial ice?
What evidence demonstrates that Earth rotates on its axis?
What is the apparent daily motion of the stars (or a Foucault pendulum)?
Which front typically produces the steepest uplift and most intense thunderstorms?
What is a cold front?
Which igneous rock has the same composition as granite but cooled rapidly?
What is rhyolite?
What process causes oceanic crust to sink beneath continental crust?
What is subduction?
What stream feature forms where a river enters a large body of water and deposition occurs?
What is a delta?
At which latitude is the duration of insolation greatest on June 21?
What is 90° N?
A station model shows a temperature of 24°C and a dew point of 22°C. What weather condition is most likely?
What are clouds and possible precipitation?
A mineral scratches fluorite but is scratched by feldspar. What is its hardness?
What is 5?
What evidence from earthquake data indicates that Earth’s outer core is liquid?
What is the S-wave shadow zone (or S-waves do not pass through it)?
A radioactive sample contains 12.5% of its original Carbon-14. How many half-lives have passed?
What are 3 half-lives?