Quarter 3 Review 19

what is superposition?

• youngest rock/fossils are at the bottom

• oldest rock/fossils are at the bottom

• medium rocks are at the bottom

what is a half life?

• mid-age

• half the time it takes to decay

• half the time it takes to live

• time it takes for 1/2 the radioactive substance to decay

what doe the principle of superposition show?

• relative ages of rock layers and fossils

• absolute ages of rock layers and fossils

• evolution sequence as rocks are laid down side by side

• yoooooo

What is the area that the edge of a tectonic plate is pushed underneath the edge of a neighboring plate?

• divergent boundary

• uplift

• subduction

• Mid-Atlantic Ridge

seafloor spreading happens when plates do what?

• plates pull away from each other

• plates push towards each other

• plates slide past each other

where are volcanoes least likely to be found?

• on plate boundaries

• middle of a tectonic plate

• Iceland

• Hawaii

what evidence supports Wegener's theory of Plate Tectonic?

• fossils of different types found on different continents

• Fossils of the same type on the same continent

• Fossils of the same type found on different continents

What is causing the himalayas to rise?

• plates pulling apart

• a convergent boundary

• Plates pushing together, uplift

• plates sliding past another

Why are there fewer volcanoes in Africa then in the ring of fire?

• There are no faults in Africa

• Africa is on a single Tectonic Plate

• The plate boundary inside Africa is too small to form earthquakes

• The landmass of Africa is too great to be affected by earthquakes

Put these in order from fastest to slowest (weathering,hydrothermal activity, Plate Tectonics)

• plate tectonics, weathering, hydrothermal activity

• Weathering, hydrothermal activity, plate tectonics

• Hydrothermal activity, plate tectonics, weathering

• Hydrothermal activity, weathering, plate tectonics