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nonliving parts of an ecosystem
all the living organisms that inhabit an environment
what is another name for the tectonic plates that float on the mantle?
All of the water on Earth
This is a mixture of gases that surrounds Earth. In addition to containing the oxygen you need to breathe, it protects you from the sun's damaging rays and is always changing.
earth, air, and water woven into each, the spark of life
the variation of life forms within a given ecosystem.
region between 23.5 degrees north and 23.5 degrees south of the equator; the sun's rays are most intense there and the temperatures are always warm
cold and treeless, with low-growing vegetation
biome composed of large communities covered with grasses and similar small plants
A group of individuals that belong to the same species and live in the same area
a place where people live, work, and play
place where an organism lives.
the regions north of the arctic circle and south of the antarctic circle that receive the smallest amount of direct sunlight year-round
two moderate regions that lie north of and south of the tropical zone, each having hot summers, cold winters, and milder seasons in between
This is the measure of the force with which air molecules push on a surface. It is strongest at the Earth's surface because more air is above you. As you move farther away from…
the lowest portion of Earth's atmosphere; contains approximately 75% of the atmosphere's mass and 99% of its water vapor and gasses.
a region in the uppermost atmosphere where temperature increases along with the altitude due to the absorption of solar ultraviolet radiation by ozone.
-"Strong" (or middle) sphere
This is the upper atmospheric layer. In this layer temperature increases with altitude. The temperatures in this layer can reach 1,000 degrees Celsius (around 1,800 degrees Fahrenheit). Even though the temperature is very hig…
A market center for the exchange of services by people attracted from the surrounding area
This is the transfer of energy as electromagnetic waves. It is how the Earth receives energy from the sun. Earth receives only about two-billionths of the sun's energy. But this small fraction of energ…
energy in the form of heat
the recent and ongoing global average increase in temperature near the Earth's surface
trapping and build-up of heat in the atmosphere near the Earth's surface
This is the movement of air caused by differences in air pressure. The greater the pressure difference, the faster it moves.
These are caused by the combination of convection cells found at every 30 degrees of latitude and the Coriolis effect. The major examples include polar easterlies, westerlies, and trade winds. The easterlies and westerlies…
Acid rain - damages buildings and vegetation