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Climate Change Review Flashcards | StudBud
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Climate Change Review
Climate Change Review
30 terms
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#Climatechange #climate #change #9th #grade #Earth-Space #Science
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Why are humans concerned about sea-level rise?
because 80% of the human population lives near coastlines
we're not. Boats, duh.
because we'll melt if we touch water.
because 50% of the human population lives near coastlines
2
What do climatologists use to try and predict future climates?
GENIE- General Environment and Natural Investigative Ecology
paper mache models
Computer models called general circulation models, or GCMs.
A magic 8-ball
3
Why are humans concerned about global warming?
droughts in areas where we're growing food.
melting ice impacts sea-levels and ocean currents
climate change can cause species die off - limiting food
Stronger storms
4
The theory that cyclical changes in Earth's orbit and tilt cause climate change is called ...
Newtonian theory
Mulan theory
Milankovitch theory
Milovitch theory
5
A gradual increase in average global temperature is called what?
sea-level rising
global room temperature
global warming
global cooling
6
How might
orbital
changes cause climate change?
Earth's distance from the sun affects the temperature
Earth's distance from the sun affects orbit
decreasing tilt increases temperature changes
increasing tilt decreases temperature changes
7
If a scientist wanted to know the climate of a continent
millions
of years ago, he/she should
drill for ice core samples in the arctic
study sea-floor sediment
study fossils
study speleothems
8
When a climatologist is studying
fossils
to understand past climates, he/she is looking for ...
adaptations to particular environments that can reveal clues
concentrations of microorganisms
concentrations of oxygen-18
concentrations of carbon dioxide
9
What can people do to limit/slow global warming?
reduce CO2 emissions from industry and vehicles
Use less electricity
Reduce methane emissions from cattle
use renewable energy
10
Because so many factors influence climate, studying climate change is a _______ process.
Impossible
Complicated
Simplistic
Infantile
11
A scientist wants to know the
COMPOSITION
of Earth's past atmospheres. He/she should
look at pockets of air trapped in ice core samples
study stalagmites
study signs of precipitation in tree rings
Study fossils to get an idea of animal adaptations
12
The
wobble
of Earth on its axis changes the direction of Earth's tilt and can _____ the seasons
Reverse
weaken
keep
remove
13
If sea-floor sediment has ____ concentrations of Oxygen-18, it indicates past waters
were
cool
all of the above
no
low
high
14
True or False - Global warming might improve conditions for crops in cold regions.
True
False
15
What factors are used to describe climate?
Temperature and Precipitation
Temperature and humidity
Heat and rain
acid and base
16
True or false - changes in the climate of one area can affect climates around the world.
True
False
17
Large volcanic eruptions can influence climate by what?
releasing sulfur and ash which absorb sunlight
releasing sulfur and ash which reflect sunlight
releasing CO2 and water which reflect sunlight
absorbing CO2 and converting it to Oxygen
18
Which of the following is NOT a way scientists study past climates?
Ice cores
volcano composition
Sea-floor sediment
fossils
19
CO
2
does what with infrared radiation?
absorbs and reemits only downward
reflects
absorbs
absorbs and reemits in all directions
20
The movement of continents over millions of years can cause climate change by ...
changing the rivers, the atmosphere, and longitudes
Changing the composition, wind patterns, and latitudes
changing the ocean currents, wind patterns, and latitudes
changing the ocean currents, wind patterns, and longitudes
21
What is the decrease in PH of Earth's oceans as they absorb CO
2
and form carbonic acid?
Ocean Acidification
Ocean Dedication
Ocean Deification
Ocean specification
22
What are positive feedback loops?
Vicious cycles that cause an increase in a trend
kind input into cyclical things
kind comments about fruit loops cereal
virtuous cycles that cause a decrease in a trend
23
How might changes in Earth's
tilt
affect climate?
increasing tilt decreases temperature changes
decreasing tilt decreases temperature differences 4 seasons
Earth's distance from the sun doesn't affect temperature
Earth's distance from the sun affects orbit
24
Increased CO
2
concentrations may lead to what?
global cooling
nothing
all of the above
Global warming
25
What is a scientist that studies past and present climates in order to predict future climates?
Climatologist
Environmentalist
Global-warming-ologist
Ecologist
26
Which is NOT considered a potential climate change?
changes in precipitation
changes in sediment deposition
sea-level changes
global warming
27
Tree rings show past climates. Thick rings indicate ________ climates, and thin rings, _______.
warm and wet; cool and dry
warm and dry; cool and wet
cool and dry; warm and wet
warm and dry; cool and dry
28
Snow that falls near the poles doesn't melt. Layers accumulate each year. The further you dig,
the newer the ice layers get.
you're just studying the present.
All the snow mixes up, so no one knows.
the older the ice layers get.
29
How can global warming cause sea-levels to rise?
heat expands the oceans, and melts the ice caps
heat expands the oceans, and cools the ice caps
heat increases plate tectonics and the upwelling of oceans
heat condenses the oceans, and melts the ice caps
30
Human activity
affects climate mostly through ________ and _____ use.
emissions; land
land; emissions
conversations; cell-phone
respiration; tobacco
