what causes earths seasons?
479647
the tilt of the earth and when it revolves around the sun
107641
Almost all of Earth's internal temperature is radiated outward from its molten core. There is also some heating, particularly nearer the Earth's surface, resulting from physical stresses brought on by Earth's rotation, motion around the Sun, and by gravitational interaction with the Moon.
885381
Yes!  Which is one of the reasons we study other planets - to learn more about weather here on Earth.\n\nFor a world to have seasons, its axis must be tilted relative to the plane of its orbit.  Earth's axis is tilted by 23.5 degrees.  Mars's axis is tilted almost the same amount (closer to 25 degrees) so Mars has seasons - you can see a change in the polar ice caps on Mars with the seasons.\n\nSaturn also has a tilt similar to Earths.  Of course the weather on Saturn is very different from Earth because it is so far from the Sun and it doesn't have any solid surface.  But you may have heard about a new hurricane-like storm on Saturn - it gets those storms periodically.\n\nThe tilt of Uranus is drastic - over 90 degrees!  So its seasons are quite severe - for many years the northern hemisphere will be in sunlight constantly while the southern hemisphere is in constant darkness.  Right now we're getting close to springtime on Uranus, so both hemispheres are getting about equal sunlight, and new storms are popping up.  This is exciting, since the last time this happened on Uranus we didn't have telescopes powerful enough to see them!  All of our old images of Uranus show it as a boring blue sphere, but it's not boring anymore!
640598
Tides are caused by factors such as winds, earths rotation and the sun and the moon's gravitational pull. All of them combined sometimes.\n\nexceptional cases such as tsunami-when sections of plates of earth's crust undergo changes such as shift, quakes, displacements
886899
Electromagnetic fields don't cause the earth to wobble. The earth processes like a top and wobbles. As the earth processes the northern and souther hemispheres get different amounts of heat. This drives the weather. This motion of the earth is due to angular momentum from left over from its formation and the procession probably results from collisions with large objects, including the one that formed our moon. To a much smaller extent, some of the wabble is probably due to plate techtonics.  The moon, by the way, acts to stabilize the wabble of the earth.
272536
yes--look:\nhttp://www.nasa.gov/audience/forstudents/k-4/home/F_Planet_Seasons.html
688608
The Earth's axis is tilted at 23 and a half degrees. As the Earth orbits the Sun this tilt causes the Sun's rays to hit the Earth's surface at a more or less perpendicular angle, depending on the season. Less perpendicular is winter and more perpendicular is summer. This is also why the southern hemisphere is the opposite because it is tilted the other way in relation to the northern hemispere. There are 4 seasons equivelent to 90 degrees of the Earth's orbit. Autumn and spring equinoxes and winter and summer solstices. Jules. Australia.
203146
11.B Cause\n12.C The atmosphere keeps Earth warm.\n13.B Feeding habits and migration.\n14.D While and however.\n15.A A paragraph should have one main topic.
650501
When the Earth tilts on it's axis, it moves the hemispheres either towards, or away from, the sun.  This give us seasons.  The equatorial region is the middle of the planet, and is not effected (majorly) by the tilt of the earth.  That section of the earth stays pretty much the same distance from the sun.  Since that part of the earth is closest to the sun, it's hot.  Since it's not tilted away from the sun, it's hot thru-out the year.
497884
The Sun is slightly closer in January at perihelion (147.5 million kilometers) and slightly farther away in July at aphelion (152.6 million kilometers).  Earth’s slightly elliptical orbit is not responsible for our seasons, however.\n\nEarth’s axis is tilted 23.5 degrees with respect to the plane of our orbit around the Sun.  Summer occurs when one’s hemisphere is tilted toward the Sun; winter when it’s tipped away.  Thus, seasons in Australia are reversed relative to North America—summer in Melbourne is winter in New York, and vice-versa.  (I’m sadly aware of that effect, since I’m travelling to Melbourne in a few months.)\n\n\nRyan Wyatt\nRose Center for Earth & Space\nNew York, New York
357294
The Earth is surrounded by atmosphere, which is made up of many greenhouse gases. The Earths temperature\n      depends on the solar constant.\n      The Earths surface absorbs heat from the sun and re-radiates it back out to space with the help of clouds, snow,\n      atmosphere dust and sea surfaces, the rest is absorbed by other gases and aerosols, examples of these is the\n      gases from power stations and volcanoes which can be liquid or dust, some solar radiation does not reach\n      space this remains trapped in the atmosphere by greenhouse gases. \n      The temperature of the Earth has changed and is continuing to do so with the help of human activity in rising \n      Co2 levels, from 1850-1996 Co2 rose from 285 p.p.m to 360 p.p.m a 0.7ºc rise in surface temperature.\n      We know how trees and plants are vital to us as they convert Co2 into oxygen to help us breathe, but industry\n      will continue to cut and burn down forests allowing more Co2 into the air, with this decrease in vegetation this\n      means more Co2 will remain in the atmosphere and with the burning of fossil fuels we are also producing more \n      Co2, causing the Earths temperature to warm up.\n      Clouds also play a role in the surface temperature; they absorb radiation this increasing the amount of infrared\n      radiation that is emitted by the atmosphere depending on their altitude and thickness, a cloud is formed when\n      water vapor condenses.
650028
Our sun provides energy and heat, so, it determines what kind of weather we have. Other planets and even our moon, help with gravitational pull that makes us have a year of approx. 365 days. Also, our yearly stations (winter, spring, summer and fall) depend upon the earth´s rotation around the sun and if any of the planets was missing, our planet would modify its orbit around the sun, the position of earth would change and maybe, life on earth would no longer be possible.
305131
cause - cars , beans the MAGICAL FRUIT\n\n\neffects- we will all die from the globe over heating , no glsciers, panguiens, cant go outside
182670
4 seasons to a year.  A season in the common sense is defeind by tepreature.  but a season in the technical sense is defined by the earth's tilt relative to your hemisphere.  They usually don't match; spring and fall are often too short.\n\nThe equinoxi are at June 21 and December 21; they mark the start of winter and summer in the northern hemisphere.  They are reversed in the southern hemisphere.  SPring and fall are halfway in between.
441477
Yes.  Forest Fires.  Fire season will be upon us soon.  We also have earthquakes, avalanches, wind storms, hail storms, snow storms, floods, etc.
447054
the sun..... the sun is the only thing responsible for warming the earth. Dont get me wrong ...pollution and greenhouse gases also contribute. But they are not the only reason. We are in a short period of warm temperatures on earth. A small window in time. We just got out of an ice age about 12-15ooo years ago. We have had longer periods of global Ice Ages than we have of global warm periods in the last few million years.... Did u know that a violent volcano can spew enough greenhouse gas into the atmosphere to warm our atmospheric temperatures several degrees. Pollution does the same thing but on a smaller scale. This gas traps the earths heat from escaping back into space. Its like a blanket for our atmosphere. Then the earth gets warm, and creates more water vapor from the oceans. More water vapor means more clouds. More clouds mean less sunlight hitting the surface of earth, less sunlight means less heat, less heat means more ice.. and we go back into an ice age.... then the earth fixes herself, we start to get warmer.... and we go on and on.... Its been happening like that for millions of years. If it wasent for global warming we wouldnt be alive and the earth would be covered with seals, penguins, polar bears and wolly mammoths.
338419
First, all planets in our solar system are tilted, although Mercury isn't tilted much.  And yes, this is what causes seasons.\n\nWe can observe seasonal changes (growing and shrinking of polar ice caps and the dust storms they seem to induce) on Mars.  I believe Neptune also has very strange seasons that we don't know much about.\n\nOn a bigger, gaseous planet like Jupiter though, although it tilts we wont see much in the way of seasons because it's atmosphere is affected by many other things that make it turbulent as is.\n\nIn the case of Venus, it has such a wild greenhouse effect (and might be close to being perfectly upside down, I can't recall) that I don't think we will see much in the way of seasons there either.