EARTH SCIENCE 1086 UNIT 3 MIDTERM| 2025-2026 LATEST
UPDATED|60 REAL EXAM | COMPLETE QUESTIONS AND ANSWERS |
100% RATED CORRECT | 100% VERFIED | ALREADY GRADED A+
Where are the rocky planets located - (answer)They are the first four planets,
starting from the Sun
Where does a magnetic field come from on earth - (answer)the molten iron rich
core of earth
How did Earth grow, like similarly with other planets (one word) -
(answer)Accretion - gradual accumlation of other small thigns
Define dynamo and how it works - (answer)Dynamo = mechanism to generate a
magnetic field, converting physical energy to electrical energy, the solid inner core
rotates in the liquid outer core
Define paleomagnetism - (answer)studying magnetism in rocks that was induced
by Earth's magnetic field
, What is the curie point - (answer)temperature at which atoms are active, meaning
above this no more permanent magnetic field
define subduction and which plate margins it aligns with - (answer)where the
plates go below on, and it is by convergent
define convection in plate margins - (answer)currents in the mesosphere lead to
heat convection current to above where the plates sit on
what are the two important time points in relative rock dating - (answer)65.5 mya
when 70-75%of life wiped and 251 mya when 96% was wipsed
when was the Proterzoic era - (answer)545 mya
What are the most common elements for absolute rock dating -
(answer)Uranium/Thorium or carbon dating (for shit less than 10k years old)
What was Earth's early atmosphere like? - (answer)mostliy helium and hydrogen
UPDATED|60 REAL EXAM | COMPLETE QUESTIONS AND ANSWERS |
100% RATED CORRECT | 100% VERFIED | ALREADY GRADED A+
Where are the rocky planets located - (answer)They are the first four planets,
starting from the Sun
Where does a magnetic field come from on earth - (answer)the molten iron rich
core of earth
How did Earth grow, like similarly with other planets (one word) -
(answer)Accretion - gradual accumlation of other small thigns
Define dynamo and how it works - (answer)Dynamo = mechanism to generate a
magnetic field, converting physical energy to electrical energy, the solid inner core
rotates in the liquid outer core
Define paleomagnetism - (answer)studying magnetism in rocks that was induced
by Earth's magnetic field
, What is the curie point - (answer)temperature at which atoms are active, meaning
above this no more permanent magnetic field
define subduction and which plate margins it aligns with - (answer)where the
plates go below on, and it is by convergent
define convection in plate margins - (answer)currents in the mesosphere lead to
heat convection current to above where the plates sit on
what are the two important time points in relative rock dating - (answer)65.5 mya
when 70-75%of life wiped and 251 mya when 96% was wipsed
when was the Proterzoic era - (answer)545 mya
What are the most common elements for absolute rock dating -
(answer)Uranium/Thorium or carbon dating (for shit less than 10k years old)
What was Earth's early atmosphere like? - (answer)mostliy helium and hydrogen
