grade 9 geo exam (unit 2) Flashcards

1
Q

what is global warming?

A

global warming is the term used to describe the rising average temperature on earth.

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2
Q

which era is the longest/oldest

A

pre-crambrian

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3
Q

what is weather? what is climate?

A

weather= the day to day conditions of the atmosphere. lasts a short period of time
climate= the weather conditions for a certain place that lasts a long period of time

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4
Q

what are the ocean currents that affect canada?

A

warm ocean current= heat the air above it
cool ocean current= cool the air above it

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5
Q

what are the 8 climate regions

A

arctic
pacific martime
western cordillera
taiga
boreal
praires
southeastern
arctic maritime

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6
Q

what are metamorphic rocks?

A

these rocks are formed from intense heat and pressure. it also has a combination of other rock types. ex. marble

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7
Q

what is pangea?

A

made 200 million years ago, the continents made a single giant land called “pangea”. alfred wegner created this theory called continental drift

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8
Q

what are the 4 layers of the earth?

A

crust, mantle, outer core, inner core

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9
Q

name the 7 landform regions in canada

A

the canadian sheild
arctic and hudson bay
great lakes st. lawerence
interior plains
appalachian uplands
western cordillera
innuitian mountains

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10
Q

who is john tuzo willson and what did he come up with?

A

john tuzo willson was the person who created the theory of plate tectonics

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11
Q

what are the 3 plate boundaries?

A

divergent: plates pulling apart
convergent: plates crashing together
transform: sliding together

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12
Q

what does each plate boundary create?

A

divergent: volcanoes
convergent: mountains
transform: earthquakes

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13
Q

what are igenous rocks?

A

these rocks are formed from the solidifaction of molten rock. when magma or lava cools, igenous rock is formed

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14
Q

what scale is used to mesasure earthqaukes

A

the richter scale

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15
Q

what are the factors that affect climate (LOWERN)

A

latitude
ocean currents
wind and air masses
elevation
relief
nearness to water

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16
Q

what might be some global warming problems in canada

A

higher temperature, extreme weather events, rising sea levels

17
Q

which era is the age of mammels

A

cenozoic

18
Q

why do the earth’s plates move

A

because of the 3 plate boundaries

19
Q

what type of rock contains fossil fuels?

A

sedimentary

20
Q

what evidence did he have for this theory

A

puzzle pieces: the continents fit together like a puzzle. piece

simular fossil types: the same fossil and rock types where found at different locations

mountains: mountains simular in age were found both sides of the atlantic ocean

ice sheets: ice sheeets covered southern africa, india, and australia

21
Q

which landform region is the smallest and largest

A

smallest= innuitian mountains
largest= canadian sheild

22
Q

what does pangea mean in greek?

A

all lands

23
Q

what is precipitation

A

moisture that falls to the earth for form rain or snow

24
Q

what are sedimentary rocks?

A

these rocks are formed from sediments. these sediments include fragerence, materilism, or minerals.

25
Q

what is windward and leeward

A

windward= warm air rises, windward cools it, causes rain
leeward= cool air desends, leeward warm it up

26
Q

which era is the age of reptiles/dinosaours?

A

mesozoic

27
Q

what is the ring of fire? where is it located?

A

the ring of fire is where lots of volcanoes and earthqaules erput. located in the basin of thr pacfic ocean

28
Q

what are the 4 eras of the earth?

A

pre-crambrian, paleozoic, mesozoic, cenozoic

29
Q

what are the 3 types of precipatation

A

orographic
convectional
cyclonic