ESRT Page 5 Practice Questions

Front

What tectonic plate is the St. Helena hotspot located on?

Back

African Plate

Front

How many degrees of Longitude approximately separate our world's time-zones based on our planet's rotation?

Back

15°

Front

Compared to the oceanic crust, the continental crust is made of what material and is more or less dense?

Back

Made of granite and less dense

Front

What tectonic plate is the Canary Island hotspot located on?

Back

African Plate

Front

Compared to the oceanic crust, the continental crust is thicker or thinner and more or less dense?

Back

Thicker and less dense

Front

What is the primary composition of oceanic crust?

Back

Basalt

Front

What is the primary composition of continental crust?

Back

Granite

Front

What is the average thickness of oceanic crust?

Back

5-10 kilometers

Front

What is the average thickness of continental crust?

Back

30-50 kilometers

Front

What is the significance of the 15° longitude separation in time zones?

Back

It represents one hour of time difference.