NEW SS: Section 1 Flashcards
What is ESS?
a relatively new approach to studying the natural world, which looks at Earth as a whole
How many subsystems are in ESS?
there are 4 basic subsystems, 5 if you count the cryosphere
What are the subsystems of ESS?
atmosphere, biosphere, geosphere, and hydrosphere
What is the geosphere?
all the rock on Earth
What is the hydrosphere
all the water and ice on Earth
What is the biosphere?
all the living things on Earth
What is the atmosphere?
all the air on Earth
What are forcings?
factors, usually external, that alter the stability of weather and climate
When forcings alter climate, what is produced?
a feedback, either positive or negative
What are the 2 types of feedbacks?
positive feedbacks and negative feedbacks
What is scale?
how large or small something is occurring
The Earth’s subsystems interact with each other to influence what?
weather and climate
The Earth’s subsystems interact with each other to influence the weather and climate. These interactions an occur on very different geographical ___________.
scales
How large of a scale is a stream drying up?
small scale
How large of a scale is an ocean warming up?
large scale
What is another term for geosphere?
lithosphere
Lithosphere is derived from what language?
Greek
Lithosphere incorporates the Greek word for what?
rock or stone
What created mountains, volcanoes, and oceans?
tectonic plates
Where do most of the interactions between the geosphere and the other subsystems occur?l
the crust
The Earth’s crust is a relatively _____ layer.
thin
How does the biosphere influence the geosphere?
it changes the composition of the soil
How does the geosphere interact with the hydrosphere?
mountains cause clouds to form, resulting in rainfall
How do mountains cause rainfall?
they help form clouds, which eventually cause rainfall
What subsystem is the cryosphere part of?
the hydrosphere, as it is not usually considered its own subsystem
What is the cryosphere?
all the ice on Earth, not an official subsystem
What is the lowest layer of the atmosphere?
the troposphere
What is the second lowest layer of the atmosphere?
the stratosphere
What is the middle layer of the atmosphere?
the mesosphere
What is the second highest layer of the atmosphere?
the thermosphere
What is the highest layer of the atmosphere?
the exosphere
What is the main way the atmosphere affects climate?
the greenhouse effect
Light that comes from the Sun is either __________ or ___________.
absorbed, reflected
What is the greenhouse effect?
when certain gases in the atmosphere trap heat
Is the greenhouse effect bad?
Not necessarily, we need it to keep our planet warm, but too much of it can harm the planet
How high above Earth is the troposphere found?
0 to 12-18 km
How high above Earth is the stratosphere found?
11 to 50 km
How high above Earth is the mesosphere found?
40-50 to 80-90 km
How high above Earth is the thermosphere found?
80-90 to 800 km
How high above Earth is the exosphere found?
800 to 3000 km
What is the temperature of the troposphere?
15 to -56.5 C
What is the temperature of the stratosphere?
-56.5 to -2.5 C
What is the temperature of the mesosphere?
-2.5 to -86.5 C
What is the temperature of the thermosphere?
-86.5 to 1200 C
What is the temperature of the exosphere?
1200 C
Life influences the _________ and __________ makeup of the Earth’s subsystems.
chemical, thermal
What is the carbon cycle?
the cycle of carbon throughout Earth, humans inhale oxygen produced by trees and plants, etc
What has the human use of fossil fuels rapidly accelerated?
the carbon cycle
What are the 2 types of systems?
open systems and closed systems
What is an open system?
a system where the exchange of matter or energy occurs
What is a closed system?
a system where the exchange of matter or energy doesn’t occur
What type of system is Earth’s climate?
an open system
What is Earth’s main source of energy?
the Sun
What are the 3 most influential forcings?
solar energy, volcanoes, and greenhouse gases
Cooler temperatures in the Northern Hemisphere in the late 1600s and 1700s corresponded with what?
fewer sunspots and low solar activity in general
What are the Milankovitch cycles?
different cycles that Earth goes through which influence the amount of solar energy received by Earth