Plate Tectonics Question Preview (ID: 44974)


Semester 1. TEACHERS: click here for quick copy question ID numbers.

When you cook vegetable soup, you might notice the veggies swirling in a circle in the boiling liquid. What is this a model of?
a) Convection currents in the mantle
b) Continental drift
c) Convection currents in the inner core
d) Stratification in layers

What happens to temperature, density, and pressure and you go from the crust to the core?
a) all decrease
b) all increase
c) temperature increases, the others decrease
d) density increases, the others decrease

Which was NOT evidence used to support continental drift theory?
a) fossils
b) shapes of continents
c) changing climates in some places
d) lithification of sediments

What idea states that the continents were once joined together and have spread apart over millions of year?
a) Continental separation theory
b) Continental convergent theory
c) Continental drift theory
d) Sea-floor spreading theory

What is the process that creates new ocean crust at the divergent boundary?
a) sea-floor shrinking
b) sea-floor spreading
c) subduction zone
d) continental drift

What type of boundary formed the mid-ocean ridge?
a) Convergent
b) Divergent
c) Transform
d) Subduction

Which layer of the Earth is the hottest and is composed of solid iron and nickel?
a) Outer Core
b) Asthenosphere
c) Inner Core
d) Crust

Which layer of the Earth is the least dense and is the thinnest?
a) Inner core
b) Outer Core
c) Lithosphere
d) Crust

What causes convection currents in the asthenosphere that causes the plates to move?
a) Differences in density (cold sinking rock; hot rising rock)
b) Differences in rock types (sedimentary, metamorphic)
c) Differences in pressure (increasing as you get deeper in the Earth)
d) Differences in composition (types of minerals that make up rocks)

If you find fossils of sea organisms on a mountain, what can you conclude?
a) The mountain was once in the ocean water
b) The mountain was once part of the ocean floor
c) The sea organisms once lived on land
d) The wind deposited the fossils on the mountain

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