In Sweden the title psychologist is restricted in law. It can only be used after receiving a license from the government. The basic requirements are a completed five years specialised course in psychology (equivalent of a master's degree) and 12 months of practice under supervision.
Because the earth's axis is tilted. It is all about the tilt of the Earth's axis. Many people believe that the temperature changes because the Earth is closer to the sun in summer and farther from the sun in winter. In fact, the Earth is farthest from the sun in July and is closest to the sun in January! During the summer, the sun's rays hit the Earth at a steep angle.
When the North Pole is pointed toward the sun, summer is produced in the northern hemisphere; the southern hemisphere has winter. When the South Pole is pointed toward the sun, the southern hemisphere receives the most heat and has summer. The effectiveness of the sunâs rays is one reason summer is warmer than winter. A second reason is that the days are longer. While the sun is shining, the land and air heat up.