ES Hmwk; Plate Tectonics

According to the theory of plate tectonics, the distance between two continents on opposite sides of a mid-oceanic ridge will generally

• decrease

• increase

• remain the same

Tags

NGSS.MS-ESS2-3

Which statement is best supported by the relative movement shown the arrows in the diagram?

• North America and South America are moving toward each other

• The Indian-Australian plate is moving away from the Eurasian plate

• The African plate and Eurasian plate are moving away from the North American plate

• The Antarctic plate is moving away from the North American plate

Tags

NGSS.MS-ESS2-3

The boundaries between all of these plates are best described as the sites of

• frequent crustal activity

• deep ocean depths

• continental boundaries

• magnetic age pattern

Tags

NGSS.MS-ESS2-3

Which geologic structure is represented by the double line separating the NA plate from the African and Eurasian plate?

• thick continental crust

• thick layers of sediment

• mid-ocean ridges

• granitic igneous rock

Which provides the best explanation of the mechanism that causes these plates to move across Earth's surface?

• convection currents in the mantle

• faulting of the lithosphere

• the spin on Earth on its axis

• prevailing wind belts of the troposphere

The age of formation of the igneous rocks A, B, C, D, and E that make up the oceanic crust of the northern half of the Pacific plate suggests that this section of the Pacific plate is generally moving in which direction?

• from north to south

• from south to north

• from west to east

• from east to west

Tags

NGSS.MS-ESS2-3

Scientists theorize that Africa and South America were once part of the same large continent. Cite TWO pieces of evidence that support this theory.

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Which statement best supports the concept that continents have shifted position?

• basaltic rock is found to be progressively younger at increasing distances from a mid-ocean ridge

• marine fossils in deep-well drill cores

• the present continents appear to fit together as pieces of a larger land mass

• areas of shallow-water seas tend to accumulate sediment, which gradually sink

Tags

NGSS.MS-ESS2-3

Draw TWO expected similarities between rock samples found equal distances from and on opposite sides of the Mid-Atlantic Ridge?

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Which feature is commonly formed at a plate boundary where oceanic crust converges with continental crust?

• a mid-ocean ridge

• an oceanic trench

• a transform fault

• a new oceanic crust

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2