Correct Answers
What are the four types of Oceanography? Define each. Correct Answer-
1. Geological - Ocean floor and sediments
2. Chemical - Elements contained in ocean, H2O
3. Physical - Waves, Tides, and Energy
4. Biological - Organisms
What are the four main oceans? And one more? Correct Answer-
Atlantic, Pacific, Indian, Artic, Southern
For the different oceans, make sure you know which one is the:
1. Largest
2. Deepest
3. Shallowest Correct Answer-1. Pacific
2. Pacific
3. Artic
(Pacific: Oldest, Atlantic: Youngest)
Identify the composition of the following layers:
1. Crust
2. Mantle
3. Core Correct Answer-1. Silicates - ocean-basalt, continents, granite
2. Magnesium and Iron, Melted
, 3. Iron & Nickel
Where do most scientists think the water on our planet came from?
Correct Answer-Out-gassing, water vapor and other gasses from the
earth's interior
What is the continental drift? Who proposed the idea? Correct Answer-
Alfred Wegener. Continents were once one lard land mass know as
Tangea.
Name 3 pieces of evidence for continental drift. Correct Answer-Plant
fossils: pangea, pantholassas
Rocks, fossils, climate, puzzle like fit
What does the Theory of Plate Tetonics state? Correct Answer-Earth's
crust is divided into several plates that move independently of one
another in response to the heat flow in crust.
Describe the process of Sea-Floor Spreading. Correct Answer-As plates
move apart, new ocean crust is created at mid-ocean ridge and destroyed
at deep-sea ridge due to subduction.
Who proposed the Sea-Floor Spreading Process? Correct Answer-Harry
Hess