Chapter 7 Quiz Flashcards

1
Q

What is the atmosphere?

A

Layer of gases that surround a planet or moon that protect from extreme temperatures

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2
Q

What is the most important factor that affects climate on earth?

A

Energy from the sun

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3
Q

What are 3 types of movement changes?

A

Eccentricity- change in orbit
Tilt - angle changes
Wobble - wobbles as it rotates on axis (precession)

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4
Q

How do the sun’s rays strike earth?

A

Perpendicular to the earth’s surface

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5
Q

What is the atmosphere mainly composed of?

A

Nitrogen and oxygen

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6
Q

What is the greenhouse effect?

A

Natural warming caused by when gases in atmosphere absorb thermal energy
Keeps earth temp. in check

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7
Q

What is wind?

A

Movement of air from high to low pressure

Result in uneven heating of earth surface

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8
Q

What are prevailing winds?

What are jet streams?

A

Prevailing - blow in constant direction

Jet stream - high altitude winds, travel fast at high speeds

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9
Q

What is the hydrosphere?

A

The collective mass of water found anywhere on earth in liquid gas or solid form

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10
Q

What can the ocean do better than the atmosphere?

A

Oceans can hold more heat, known as heat reservoirs

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11
Q

What is specific heat capacity?

A

The amount of heat required to raise the temp of one gram of a substance by 1 degree Celsius

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12
Q

What is the albedo effect?
Which colours have a greater albedo?
How efficient is water at reflecting sun?

A

Albedo - fraction of energy reflected by a surface
Lighter colours reflect heat, don’t absorb
Water is 7% efficient, ice and snow 80-90

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13
Q

What are tectonic plates?

How many does earth have?

A

Piece of earth’s outer shell (lithosphere) moves around underlying rock (asthenosphere)
12 plates
Thai results in continent shapes changing

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14
Q

What do volcanic eruptions spew?

What affect do aerosols have on climate?

A

Ash and aerosols

Aerosols reflect solar radiation and thus have a cooling affect on global climate

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15
Q

Definition of anthropogenic?

A

Caused by humans, ex. the Industrial revolution that begun in the 1700s and required fossil fuel powered technologies

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16
Q

What are climate zones?

A

Regions that share similar weather conditions

17
Q

Aristotle identified 3 major climate zones based on distance from the equator. What were they?

A

Tropical zone - between tropic of cancer and tropic of capricorn
Polar zone - between north and south pole
North and south temperate zone - between tropical zones and polar zones (either very warm or very cold)

18
Q

What are climatographs?

A

Graphs that display information about monthly precip. and temp. based on 30 years of observations

19
Q

The Koppen Climate Classification system identifies how many diff. zones based on what three factors?

A

5 zones! Depends on monthly temp. and precip. and annual precip.
TM Tropical moist
D Dry
MMM Moist, mid-latitude with mild winters
MMC Moist, mid-latitude with cold winters ONTARIO!
P Polar

20
Q

What are biomes?

A

Regions classified by climate and plant/animal species

21
Q

What are the 8 major biomes (excluding one) ?

A

P permanent ice (graph stuck to dotted line)
B boreal forest (the perfect graph)
T tundra (low temp., low precip.)
TD temperate deciduous forest (high temps. high precip.)
TR temperate rainforest (high temps. dip in precip. in summer)
G grassland (line at peak of temp.)
D desert (high temp. almost no precip.)

22
Q

Which biome is not found in Canada?

A

Tropical rainforest

23
Q

What are bioclimate profiles?

A

Graphs of climactic conditions (probability of frost, median temperature, water surplus)
Compare to an interview

24
Q

What are ecozones?

A

Regions separated by geological features (ocean, mountain, desert)

25
Q

What are ecoregions?

A

Subdivisions of ecotones characterized by smaller landforms (lake)

26
Q

Which climate zone is Ontario found in? (Note there is 5!)

A

North temperate zone

27
Q

Which Koppen climate category is Southern Ontario found in?

A

Moist, mid-latitude with cold winters

28
Q

What is global warming?

A

Increase in average global temperature

29
Q

What do changes in polar and glacial ice cause?

A

Rising sea levels

30
Q

pH levels or acidity in the oceans are dropping. what is causing this?

A

Non-metal oxides (CO2 and SO2 dissolve in water)

31
Q

How does changing climate affect health?

A

Smog causes respiratory issues

In higher temps. disease and infections spread quickly

32
Q

What causes more precip. in hotter climates?

A

Water evaporates, and condenses as rainfall

33
Q

How do humans district forests?

A

Logging for urban sprawl and clearing for agriculture

Reduces CO2 removed through photosynthesis

34
Q

Why are wetlands crucial for life?

A

Supply water and habitats