Hydro-Atmo (sphere) Flashcards
(36 cards)
What is the hydrosphere?
The Earth’s layer of water in all states
-solid
-liquid
-gas
How much of the earths water is considered Fresh Water? Where is roughly 80% of it kept?
2.5%
80% is kept in glaciers
What are the 5 major oceanic bodies
Atlantic
Pacific
Indian
Arctic
Southern
what is a WATERSHED!!!!!!
Where is its boundary defined?
A region where all inland waters drain into the same larger body
Boundary defined by the highest point of land between rivers
What are factors affecting how water flows within a watershed?
Topography (Hills and valleys)
Vegetation
Geology (soil type)
Man made barriers
Climate
What is the cryosphere?
All frozen water
What is pack ice?
ice floating on the oceans near the north or south poles
What are glaciers?
masses of ice on land formed by accumulated snow
Global warming affects the cryosphere greatly
give 2 consequences to pack ice melting
give 2 consequences to glaciers melting
PACK ICE:
1 loss of habitat for polar bears and seals
2 sunlight absorbed by dark ocean rather than reflected by ice so more warming
GLACIERS:
1 Raises ocean levels
2 Large amount of fresh cold water could disrupt ocean circulation and slow down currents
What makes up Hydraulic energy?
Hydro-electric dam energy
Waves and tidal energy
Pros of hydraulic energy
Renewable
Very little greenhouse gasses
Once the dam is built, the energy is virtually free
Cons of hydraulic energy (3)
Dams r very expensive to build
Can disrupt aquatic life
Water raises mercury from the soil
Name the thin blanket of gasses surrounding the earth
The atmosphere
Composition of the atmosphere
78% Nitrogen
21% Oxygen
1% Argon, Co2 and other trace gasses
Some amount of water is always present between 0 and 4%
What is defined as the amount of force exerted by the molecules in the atmosphere upon a surface?
Atmospheric Pressure
What is the role of the atmosphere in maintaining life on earth? (3)
1 blocks out dangerous radiation from the sun
2 Retains heat, ensuring a relatively stable climate on earth
3 The 02 and Co2 the atmosphere contains makes cellular respiration and photosynthesis possible
What are the layers of the atmosphere and their altitudes?
Troposphere - 0-15km
Stratosphere - 15-50km
Mesosphere - 50-80km
Thermosphere - 80-500km
Exosphere - 500km and more
High pressure. How?
Number of particles increases
particles collide frequently
pressure increases
Low pressure. How
Number of particles decreases
particles collide less frequently
pressure decreases
What are air masses?
enormous expanses of air and hat move together and interact with other air masses to create weather patterns
What is a cold front?
(Formation)
(Movement of air)
(Meteorological conditions)
(Formation)
When a mass of cold air meets a mass of warm air
(Movement of air)
Warm air rises rapidly above the cold air
(Meteorological conditions)
Formation of puffy clouds (cumulus)
Probably of wind + heavy rain
What is a warm front?
(Formation)
(Movement of air)
(Meteorological conditions)
(Formation)
When a mass of warm air meets a mass of cold air
(Movement of air)
Warm air rises gently above the cold air
(Meteorological conditions)
Formation of light clouds (nimbostratus)
Probability of cloudy weather and showers
What is a warm front in super basic terms
Warm into cold; slow rain
What is a cold front in super basic terms
warm into cold; slow rain