industrial infrastructure definition, industrial infrastructure meaning | English dictionary. industrial. n (in the U.S.) a federation of industrial unions formed in 1935. n (Brit) any action, such as a strike or go-slow, taken by employees in industry to protest against working conditions, redundancies, etc.
What causes the seasons? The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun. The Earth has a tilt of 23.5 degrees relative to the ecliptic plane (the imaginary surface formed by it's almost-cicular path around the sun).
That is how it works, though, when the two hemispheres of the Earth are opposite in seasons! Because seasons are based on the rotation of the planet around the sun, the seasons change at the same time every year, even though the two halves of the planet experience opposite seasons! Seasons change on or around the 21st of four months: June, September, December and March. In the Northern Hemisphere, December begins winter, March brings on spring, June means summer is beginning and September gives autumn weather. In the Southern hemisphere, the opposite is true.