PCB 3044 Exam 1 Comprehensive
Questions (Frequently Tested) and
Complete Solutions Graded A+
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Case study: Salmon Abundance - Answer: Salmon stocks in the
Pacific north west are declining despite efforts to restore
spawning habitat. Research led to the discovery of the Pacific
Decadal Oscillation
,Pacific Decadal Oscillation - Answer: 20-30 year cycles of warm
and cool temperatures in the North Pacific
Climate is... - Answer: The most fundamental component of the
physical environment
Weather - Answer: Current conditions- temperature,
precipitation, humidity, cloud cover
Climate - Answer: Long term description of weather, based on
averages and variation measured over decades (includes cycles
and long term trends)
Global climate system - Answer: Driven by energy which is
derived from solar radiation
Incoming radiation - Answer: -1/3 reflected back by clouds and
aerosols
-1/5 absorbed by ozone, clouds and vapor
-49% absorbed by earth
Outgoing energy - Answer: -sensible heat
,-latent heat
-long-wave (infrared) radiation
-emitted by surface
-re-radiated back to earth by greenhouse gases
Greenhouse effect - Answer: A natural process existing since the
beginning of time (without it earths temperature would be about
33 degrees Celsius cooler) many gases emitted by humans
Earths energy balance - Answer: Solar radiation most intense at
equator
Energy is spread pole-ward by winds and ocean currents
Atmospheric radiation - Answer: -caused by differential heating
of Earths surface
-determines major climate zones
Low pressure - Answer: Warm rising air; condenses to form
precipitation
-0• (tropical rainforests)
-60• (temperate forests)
, High pressure - Answer: Dry, cool, falling air
-30• (deserts)
-90• (tundra)
Global wind patterns - Answer: Winds flow from areas of high
pressure to areas of low pressure
Prevailing winds - Answer: Consistent patterns of air movements
Coriolis Effect - Answer: Winds appear to be deflected due to the
rotation of the Earth
Heat capacity - Answer: Unit of heat required to increase the
temp of a substance by one degree
Oceanic circulation - Answer: Driven by surface winds but
modified by the presence of land masses (speed of the ocean
currents is about 2-3% of the wind speed)
Downwelling - Answer: Colder, saltier, (denser) water sinks
Questions (Frequently Tested) and
Complete Solutions Graded A+
Professional Academic Assistance Services
Services Offered
• Proctored Exam Assistance
• Online Class Management (Full Course Support)
• Exam Preparation & Study Materials
• Assignments and Coursework Support
• Essay and Research Paper Writing
• Discussion Posts & Responses
• Editing and Proofreading
• Confidential Academic Consultation
Contact Information
Email:
WhatsApp link: https://wa.me/254704846336
Fast Response | Confidential | Reliable Academic Support
Helping Students Achieve Academic Excellence
Case study: Salmon Abundance - Answer: Salmon stocks in the
Pacific north west are declining despite efforts to restore
spawning habitat. Research led to the discovery of the Pacific
Decadal Oscillation
,Pacific Decadal Oscillation - Answer: 20-30 year cycles of warm
and cool temperatures in the North Pacific
Climate is... - Answer: The most fundamental component of the
physical environment
Weather - Answer: Current conditions- temperature,
precipitation, humidity, cloud cover
Climate - Answer: Long term description of weather, based on
averages and variation measured over decades (includes cycles
and long term trends)
Global climate system - Answer: Driven by energy which is
derived from solar radiation
Incoming radiation - Answer: -1/3 reflected back by clouds and
aerosols
-1/5 absorbed by ozone, clouds and vapor
-49% absorbed by earth
Outgoing energy - Answer: -sensible heat
,-latent heat
-long-wave (infrared) radiation
-emitted by surface
-re-radiated back to earth by greenhouse gases
Greenhouse effect - Answer: A natural process existing since the
beginning of time (without it earths temperature would be about
33 degrees Celsius cooler) many gases emitted by humans
Earths energy balance - Answer: Solar radiation most intense at
equator
Energy is spread pole-ward by winds and ocean currents
Atmospheric radiation - Answer: -caused by differential heating
of Earths surface
-determines major climate zones
Low pressure - Answer: Warm rising air; condenses to form
precipitation
-0• (tropical rainforests)
-60• (temperate forests)
, High pressure - Answer: Dry, cool, falling air
-30• (deserts)
-90• (tundra)
Global wind patterns - Answer: Winds flow from areas of high
pressure to areas of low pressure
Prevailing winds - Answer: Consistent patterns of air movements
Coriolis Effect - Answer: Winds appear to be deflected due to the
rotation of the Earth
Heat capacity - Answer: Unit of heat required to increase the
temp of a substance by one degree
Oceanic circulation - Answer: Driven by surface winds but
modified by the presence of land masses (speed of the ocean
currents is about 2-3% of the wind speed)
Downwelling - Answer: Colder, saltier, (denser) water sinks
