Question

fill in the blank
12 points
wegeners hypothesis of
stated that earths
continents had once been
joined as a single
landmass.
the study of earths
magnetic record is known
as
.
the
states that earths crust
and rigid upper mantle
are broken into enormous
siabs called plates that
move slowly over earths
surface.
occurs when one tectonic
plate descends beneath
another.
earths continents were
once joined as a single
landmass called
.
a change in earths
magnetic field is called

Explanation:

• Wegener's hypothesis of Continental Drift proposed that Earth's continents were once joined.
• Paleomagnetism is the study of Earth's magnetic record.
• Plate Tectonics theory states Earth's crust and upper mantle are in plates.
• Subduction occurs when one plate goes beneath another.
• Pangaea was the single landmass of continents.
• Magnetic Reversal is a change in Earth's magnetic field.

Answer:

1. Continental Drift
2. Paleomagnetism
3. Plate Tectonics
4. Subduction
5. Pangaea
6. Magnetic Reversal