Chapter+Three+Key+Concepts


 * =__** ﻿ Tilt and Rotation﻿ **__=
 * Earth's Axis runs from South Pole to the North Pole
 * Earth's tilt is at 23.5 degrees. This causes temperature variations. Varied by amount of sunlight.
 * The Earth completes a rotation once every 24 hours.
 * Rotates West to East and this causes day and night.

=__** ﻿Greenhouse Effect **__=
 * Natural process of the atmosphere trapping in the suns energy.
 * The Greenhouse effect is necessary for life to occur on the earth. No effect = no heat = no life
 * 50% of the suns radiation reaches the Earth.
 * The radiation is converted into heat for our planet.

=__ Factors Affecting Climate __=
 * Elevation affects climate drastically. It influences the climate because of a temperature relationship.
 * For every rise of 100 feet, there is a drop of 3.5 degrees in temperature.
 * Brighter and more sunlight = thin atmosphere

__ Spring Equinox __ __ Summer Solstice __ __ Fall Equinox __ __ Winter Solstice __
 * __ The Earth's Season __**
 * March 21
 * Sun overhead at Equator
 * June 21
 * Sun overhead at Tropic of Cancer
 * September 23
 * Sun overhead at Equator
 * Decmeber 22
 * Sun overhead at Tropic of Capricorn

1. Descending dry air causes droughts. 2. Winds move east over warm waters. 3. Warm air rises, creating rain and flood.
 * __ The Influence of El Nino __**
 * Cold water pools in western Pacific
 * Warm water moves eastward
 * Warm water pools in eastern Pacific

__** The Influence of Elevation on Temperature **__ __ Quito, Ecuador __ __ Nairobi, Kenya __ __ Bujumbura, Burundi __ __ Manaus, Brazil __ __ Telluride, Colorado __ The higher the elevation the lower the temperature. The Earth's atmophere thins as altitude increases. Thinner air is less dense and retains less heat.
 * Elevation: 9223 ft.
 * Temperature: 58 Degrees Fahrenheit
 * Elevation: 5327 ft.
 * Temperature: 67 Degrees Fahrenheit
 * Elevation: 2568 ft.
 * Temperature: 77 Degrees Fahrenheit
 * Elevation: 276 ft.
 * Temperature: 81 Degrees Fahrenheit
 * Elevation: 8760 ft.
 * Temperature: 39 Degrees Fahrenheit

=__ Climate Regions __=
 * 1. Tropical**
 * Wet (Rainforest)
 * Dry (Savanna)
 * 2. Dry**
 * Desert
 * Steppe
 * 3. Midlatitude**
 * ====== Marine West Coast ======
 * ====== Mediterranean ======
 * ====== Humid Subtropical ======
 * ====== Humid Continental ======



=**__ Human World Population __**=

** 1. World population**
=__** Human World Culture **__=
 * ====== projections (in billions) ======
 * 2. Dempgraphic Statistics**
 * Birthrate
 * Death Rate
 * Natural Increase

** 1. Culture**

 * ====== the way of life of a group of people who share similar beliefs and customs ======
 * 2. Language**
 * Communicate experiences, information and pass on values and traditions
 * 3. Dialect**
 * local form of language
 * 4. Language Families**
 * large groups of language having similar roots

__** The Tropics Of Cancer and Capricorn **__
 * Tropic Of Cancer 23 1/2 degrees North
 * Tropic Of Capricorn 23 1/2 degrees South

__** Climate Regions **__
 * Natural Vegetation
 * The plant llife that grows in an area where the natural enviroment is unchanged by human activity

__** Tropical Climates **__
 * There are two most widespread kinds of Tropic Climate Regions
 * Tropical Wet
 * Tropical Dry