Underground water-bearing layers of porous rock,sand,or gravel.
What is aquifer?
One of two days (about June 21 and december 22) on which the sun's rays strike directly on the Tropic of Capricorn,marking the beginning of summer or winter.
What is solstice?
A frequently windless area near the Equator.
What is doldrums?
Plant life grows in a certain area if people have not changed the natural environment.
What is natrual vegetation?
Referring to vegetation having cones and needle-shaped leaves, including many evergreens, that keep their foliage throughout the winter.
What is coniferous?
Condition of the atmosphere in one place during a short period of time.
What is weather?
Continuous daylight, a time when the sun is visible at midnight during the summer in either the arctic or antarctic.
What is midnight sun?
A periodic reversal of the pattern of the ocean currents and water temperatures in the mid-Pacific region.
What is el nino?
The physical characteristics of the surface of the land.
What is terrain?
Falling off or shed seasonally or periodically; trees such as oak and maple, which lose their leaves in autumn.
What is deciduous?
An imaginary line that runs through the center of the earth between the North and South poles.
What is axis?
The capacity of certain gases in the atmosphere to trap heat, thereby warming the earth.
What is greenhouse effect?
Being in or facing the direction toward which the wind is blowing.
What is winward?
The average daily high temperature and the overnight low; are often used for the comparison across climate regions.
What is average daily temperature?
A forest with both coniferous and deciduous trees.
Permafrost
What is mixed forest?
In astronomy, the Earth's yearly trip around the sun, taking 365 ¼ days.
What is revolution?
Wind in a region that blows in a fairly constant directional pattern.
What is prevailing winds?
Result of a process by which dry areas develop on the leeward sides of mountain ranges.
What is rain shadow?
A small area in the desert where water and vegetation are found.
What is oasis?
What is leeward?
One of two days(about March 21 and September 23) on which the sun is directly above the equator, making day and night equal in length.
What is equinox?
The resulting diagonal movement, either north or south , of prevailing winds caused by Earth’s rotation.
What is coriolis effect?
Major types of ecological communities are defined primarily by distinctive plant and animal groups.
What is biome?
An inland grassland area.
What is prairie?
What is water cycle?