Benchmark 2 Part 2 Review Environmental Science

Front

Wegener’s continental drift hypothesis stated that all the continents once joined together to form ____.

Back

one major supercontinent

Front

The supercontinent in the continental drift hypothesis was called ____.

Back

Pangaea

Front

Which of the following was NOT used in support of the continental drift hypothesis? Options: fossil evidence, paleomagnetism, ancient climate, fit of South America and Africa

Back

paleomagnetism

Front

Which explanation describes how the flow of magma carries the seafloor away from the central ridge in both directions? Options: continental drift hypothesis, theory of plate tectonics, seafloor spreading, none of these

Back

seafloor spreading

Front

Where is the oldest seafloor located? Options: nearest to the central ridge, in between the central ridge and continents, inside of the mantle, farthest away from the central ridge

Back

farthest away from the central ridge

Front

New ocean crust is formed at ____.

Back

divergent boundaries

Front

According to the theory of plate tectonics, ____.

Back

the lithosphere is divided into plates

Front

What is the major force that moves the plates? Options: subduction, convection currents, seafloor spreading, conduction

Back

convection currents

Front

What type of boundary occurs where two plates move together, causing one plate to descend into the mantle beneath the other plate?

Back

convergent boundary

Front

At the type of boundary below, what process is happening? Options: ocean-ocean subduction, sliding/slipping, seafloor spreading, continent-continent collision

Back

seafloor spreading