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19 Cards in this Set

  • Front
  • Back

different subsystems that make upthe Earth

Geosphere, Hydrosphere, Atmosphere and Biosphere

set of interconnected components that are interacting to form aunified whole

system

How do the four systems interact?

The first system, the geosphere, consists of the INTERIOR AND SURFACE OF EARTH, both of which are made up of rocks. The limited part of the planet that CAN SUPPORT LIVING THINGS comprises the second system; these regions are referred to as the biosphere. In the third system are the areas of Earth that are COVERED WITH ENORMOUS AMOUNTS OF WATER, called the hydrosphere. The atmosphere is the fourth system, and it is an envelope of gas that KEEPS THE PLANET WARM and PROVIDES OXYGEN FOR BREATHING and CARBON DIOXIDE FOR PHOTOSYNTHESIS.

system in which there is only an exchange of heat or energy and NO EXCHANGE OF MATTER.

closed system

thin gaseous layer that envelopes the lithosphere

atomosphere

composition of the present atmosphere

78% nitrogen (N),


21% oxygen (O2),


0.9% argon,


and trace amount of other gases

One of the most important processes by which the heat on the Earth's surface is redistributed

atmospheric circulation

a constant exchange of HEAT AND MOISTURE between theatmosphere and the hydrosphere

hydrologic cycle

includes the rocks of the crust and mantle, the metallicliquid outer core, and the solid metallic inner core.

lithosphere

set of all life forms on Earth; covers all ecosystems—from the soil to the rainforest, from mangrovesto coral reefs, and from the plankton-rich ocean surface to the deep sea

biosphere

base of the food chain

photosynthetic organism

Describe the process of photosynthesis

CO2 is sequestered (separated) from the atmosphere, while oxygen is released as a by-product.

a CO2 sink, and therefore, an important part of the carbon cycle

biosphere

about 70% of the Earth is covered with liquid water (hydrosphere) and much of it is in the form of OCEAN WATER

hydrosphere

Composition of water

3% is fresh:


TWO-THIRDS is ice,


and the REMAINING ONE-THIRD is present in streams, lakes, and groundwater.

important sinks for CO2 through DIRECT exchange with theatmosphere and INDIRECTLY through the weathering of rocks.

oceans

Heat is absorbed and redistributed on the surface of the Earth through____

ocean circulation

a graphical representation of the proportion of land at various elevations (meters above or below sea level)

hypsographic curve

Through the process of weathering and erosion, this is anotherimportant process contributing to the shaping and reshaping of the surface of the Earth. This is an IMPORTANT LINK among the hydrosphere, atmosphere, and lithosphere that the learners should be able to identify themselves

hydrologic cycle