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12EES Module 7: Climate Science Revision Flashcards | StudBud
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12EES Module 7: Climate Science Revision
12EES Module 7: Climate Science Revision
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NSW Stage 6 Earth and Environmental Science Module 7: Climate Science revision.
Flashcards
16 cards
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Questions
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1
What does the term 'Carbon Sequestration' mean?
Capture and storage of CO2 from Earth's atmosphere
Sustainable farming to increase photosynthesis and remove CO2
Increase in CO2 emissions due to human causes
Release of compounds into the atmosphere to react with CO2
2
Reliable human temperature records provide climate statistics in which of the following time frames?
Decades
Years
Millenium
Centuries
3
Which of the following is a hypothesised result of the mass volcanism seen in the Deccan and Siberian Traps?
Climate change resulting in mass extinctions
All of the above
Extensive wild fires resulting in desertification
The formation of Pangea
4
A sustainable farming practice could include _______.
Rotating stock between paddocks
Using animals such as goats to clear vegetation
Clearing unwanted native vegetation for more pastureland
Growing crops which require irrigation in arid environments
5
An expected outcome of increased climate change would be _________.
Retreat of mountain top glaciers
Increased glaciation in Antartica
Expansion of mountain top glaciers
Increased glaciation in the Arctic
6
Identify the rainfall trend from 1970-present in Australia.
Rainfall has decreased Australia wide
Rainfall has increased in the Australian Alps
The tropics have seen an increase in rainfall
Rainfall has decreased in the E and increased in the NW
7
What are the oxygen isotopes which are useful in identifying past climate?
O12 & O16
O15 & O16
O14 & O16
O16 & O18
8
Identify a volcanic eruption or set of volcanic eruptions which significantly altered global climate.
The Deccan Traps
The Siberian Traps
Krakatoa
Mt Pinatubo
9
Identify the type of light which remains trapped within Earth's atmosphere, resulting in a greenhouse effect.
Infrared
Visible light
Ultraviolet
X-rays
10
Ocean acidification is an effect of increasing fossil fuel emissions. How does this occur?
Lower pH sea water decreases the calcification process of marine organisms
CO2 reacts with sea water forming calcium carbonate precipitates
CO2 is dissolved in sea water forming carbonic acid, decreasing pH
None of the above
11
The Plate Tectonic Super-cycle causes natural climate variation in which time frame?
Hundreds of years
Hundreds of millions of years
Thousands of years
Millions of years
12
Which of the following is a reasonable assumption from the graph below?
We have more ice now then during the last glacial maximum
The Earth has had 3 interglacial periods in the last 500 thousand years
Natural climate variation occurs over thousands of years
Climate change is rapid
13
VEI eruption's <6 may cause natural climate variation in which time frame?
Hundreds of years
Years
Thousands of years
Millions of years
14
Dendrochronology is the study of what?
Past climate
Tree rings
Ice cores
Coral calcification
15
The accumulated sum of the Milanovitch cycles effect of climate varies causes large fluctuations which time frame?
Thousands of years
Hundreds of thousands of years
Hundreds of years
Hundreds of millions of years
16
Identify a piece of evidence which can be used to measure past climate.
Pollen grains
All of the above
Ice core data
Dendrochronology
