| Dune
sands are the portions of a beach that extend
from the high-tide line inland to the sea cliff.
They are mounds of windblown sand which vary greatly
in size, from less than one meter to tens of meters
high. The shapes of individual dunes also vary
greatly. The shapes are controlled by the direction
and strength of the wind forming it. The sizes
and shapes of the mounds are determined by the
amount of sand available.
Grasslands
are large lands dominated by grasses instead trees
or shrubs. Temperate grasslands are located further
from the Central Girth in the temperate zone.
Temperate grasslands are composed of a rich mix
of grasses. Grasslands have hot summers and cold
winters with temperatures reaching up to 100 degrees
Fahrenheit while winter temperatures can be as
low as 25 degrees Fahrenheit. These areas usually
receive approximately 15 to 30 inches of precipitation
a year.
Tropical
rainforests are located near the Central Girth
in the tropical zone of the planet. It is a warm,
lush, and moist environment rich in plant and
animal species. The rainforests receive approximately
400 inches of rain per year. Temperatures are
constant in these areas, ranging between 70 degrees
and 85 degrees Fahrenheit. Tropical rainforests
are made up of four layers: emergent layer, canopy
layer, understory, and forest floor. |
