A major type of ecological community mainly defined by distinctive natural vegetation and animal groups

A specific type of climate found in or near low latitudes in areas otherwise referred to as the Tropics

A region that receives continual rainfall which strips the soil of its nutrients but contributes to thick vegetation

Plant life that grows in a certain area if people have not changed the natural environment

Wet and dry seasons and high year-round temperatures

Warm summers with heavy rain, and harshly cold winters

Hot and dry conditions with a small amount of plant and animal life

Warm, humid air with an average daily temperature of 80°

The average daily temperatures in each

The proximity of each to the Equator

The amount of rainfall and vegetation in each

The geographical location of each

mild, rainy winters; warm, dry summers

year-round freezing temperatures and limited vegetation

direct sunlight year-round with long summers, but cool temperatures

cool summers and winters with abundant rainfall

humid subtropical

marine west coast

permafrost

Mediterranean

Vegetation decreases as one moves toward higher latitudes.

Vegetation decreases as one moves toward lower latitudes.

Vegetation increases as one moves toward higher latitudes.

Changes in latitude have very little effect on the amount of vegetation.

Ocean winds that bring cool summers and wet winters

The proximity between about 30°N and 60°N and 30°S and 60°S latitude

Wind patterns and high pressure from nearby oceans

The varying temperature ranges from winter to summer by 120° F (49°C)

Permanently frozen subsoil known as permafrost.

Limited vegetation with short grasses, mosses, and lichens.

Primarily dry regions with an occasional oasis.

Mixed forests, which have both coniferous and deciduous trees.

The southeastern United States, inland Brazil, China, and India

Coastal regions of Greece, Italy, France, and Spain

The southern coast of Chile, the British Isles, and the Pacific Coast of North America.

Regions with high levels of humidity

Increased cloud cover

Fewer forests

Greenhouse gas emissions

Factors such as solar flares and volcanic activity