northern and southernmost points of direct sunlight
either of two times of year when the sun's rays shine directly overhead at noon at the furthest points north or south
mark the beginning or summer and winter
in the Northern Hemisphere, the summer solstice is the ____ day
in the Northern Hemisphere, the winter solstice is the ____ day
the sun's direct rays hit the equator
September 22 and March 21 are the approximate days of...?
During an equinox, what are the length of day and night?
the condition of the atmosphere at a particular location and time
weather conditions over a long period of time
this is developed over 100s of years.
leeward side of a mountain, gets little rain
side of a mountain not facing the coast
side of a mountain facing the coast
transfer of heat in atmosphere by upward motion of air
air rises because of ____
The temperature of air drops ___ degrees every thousand feet
moving in large circular systems, warm water flows away from equator (toward poles)
Warm water moves ___
Cold water moves ____
freezing, really hot
If there were no ocean currents, it would be ____ 45°N and above, and it would be ____ 45°S and below.
warming of waters off west coast of South America
cooling of waters off the west coast of South America
causes more rain in North America
causes drought in North America
independent community of plants and animals
ecosystem of a region
broadleaf trees - maple, oak
trees that may or may not lose leaves
needleleaf trees - pine, fir
many evergreen trees, but not all
most are located in tropical zones, high concentration of trees
flat, grassy, mostly treeless plain found mostly in tropical areas such as Africa and South America, has longer grasses
temperate grasslands, shorter grasses, found mostly in temperate areas such as Russia, the Great Plains, and Mongolia
occurs from April-May
When a cold airmass and a warm airmass collide
rise, cool, rain, thunderstorms
Collision of airmasses causes cold air to ___ and ___, this causes the moisture to be squeezed out, causing ___. Violent squeezing causes ___.
occurs during summertime
warm, moist air from water blows onto land and is heated by the sun, then rises and is cooled. Moisture is squeezed out of it forming rain.
Precipitation that is not present in LA.
Moist air comes from Pacific Ocean onto land, rides up mountain, cools and moisture is squeezed out. By the time it gets over the mountain the moisture is squeezed out so it is dry, forming a desert on the leeward side of the mountain.