Unit 1

Question 1

Pangea

Answer 1

A supercontinent that assembles at the end of the Paleozoic era

Question 2

Continental drift

Answer 2

The idea that the continents have moved and are still moving across the earth

Question 3

Ridge push force

Answer 3

A process in which gravity causes the elevated lithosphere with those for you at the mid ocean ridge access to push on the lithosphere that lives further away

Question 4

Slab pull force

Answer 4

The force that down going plates apply to oceanic lithosphere at convergent margin

Question 5

Sea floor spreading

Answer 5

Gradual widening of an ocean basin as new oceanic crust forms at a mid ocean ridge access and then moves away from the axis

Question 6

Subduction

Answer 6

The process by which one oceanic plate Bends and sinks down into the ad Asthenosphere beneath another plate

Question 7

Convergent boundary

Answer 7

Two plates move towards each other

Question 8

Divergent boundary

Answer 8

Two plates move away from the axis of a mid ocean ridge

Question 9

Transform boundary

Answer 9

Two plates slide past each other on a vertical fault surface

Question 10

Paleomagnitism

Answer 10

The relatively rigid nonflammable layer of the earth con constituting the crust at the top of the mantle

Question 11

Nebulae

Answer 11

A cloud of gas or dust

Question 12

Stellar nucleosynthesis

Answer 12

The production of new larger Adams by fusion reactions stars the process generates more massive elements that were not produced by the Big Bang

Question 13

Nebular theory

Answer 13

Concept of planets grow out of the rings if gas Dustin is surrounding a newborn star

Question 14

Planetesimal

Answer 14

Tiny, solid pieces of rock metal that come collect in a planetary nebula and eventually accumulate to form a planet

Question 15

Protoplanet

Answer 15

A body that grows by the accumulation of planetesimals but has not yet become big enough to be called a planet

Question 16

Differentiation

Answer 16

A process early and a planet history during which Dennis iron alloy metal did and sink down words to form the core leaving less dense mantle behind

Question 17

Crust

Answer 17

The rock that makes up the outer most layer of the earth

Question 18

Mantle

Answer 18

A thick layer of rock below the earths crust and above the core

Question 19

Core

Answer 19

The Dennis iron rich centre of the earth

Question 20

Asthenosphere

Answer 20

The layer of the mantle that is relatively soft and can flow one acted on by force

Question 21

Lithosphere

Answer 21

The relatively Bridget non-flowable layer of earth consisting the crust and top layer part of the mantle

Question 22

The moho

Answer 22

The semi seismic velocity discontinued that defines the boundary between the earths crust and mantle

Question 23

Epicentre

Answer 23

The point on the surface of the earth directly above the focus of an earthquake

Question 24

Seismogram

Answer 24

The record of an earthquake produced by a seismograph

Question 25

Magnitude

Answer 25

The number that represents the max amplitude of ground motion from the epicentre