The Earth's revolution occurs in two different ways. The Earth revolves around the sun, and it also revolves, or rotates, on its own axis.Know More
The Earth revolves around the sun at a speed of about 67,100 miles per hour. One whole orbit or revolution around the sun takes approximately 365.25 days, which comes out to a year. The extra 0.25 day is accounted in the extra day on leap years every 4 years.
The Earth's axis is tilted slightly, meaning part of the planet is closer to the sun and part of it is farther away at any given time. The actual distance to the sun also changes throughout the year, from a high of 94,509,130 miles around July 4th to a low of 91,402,505 miles around January 3rd. Because the Earth tilts towards the Southern Hemisphere in January , it means that the Southern Hemisphere gets slightly more solar energy than the Northern Hemisphere over the whole year.
The Earth's rotation around the sun and its tilt also produce the seasonal variations in the weather. As the Northern Hemisphere tilts towards the sun, it experiences the warmer temperatures of summer. At the same time, the Southern Hemisphere is tilted away from the sun and experiences winter.Learn more about Earth Science
Approximately 12.5 percent of an iceberg is above the waterline. An iceberg is a massive piece of ice that separates from a glacier or ice sheet. In order to be considered an iceberg, it must meet certain size criteria.Full Answer >
Latitude forms an inverse relationship with temperature, where regions at lower latitudes have higher temperatures compared to areas at higher latitudes. The lower the latitude, the warmer the region becomes. Conversely, the higher the latitude, the colder the area becomes.Full Answer >
The Earth's four spheres interact in all six possible combinations: lithosphere and hydrosphere, lithosphere and biosphere, lithosphere and atmosphere, hydrosphere and biosphere, hydrosphere and atmosphere, and biosphere and atmosphere. All six interactions go in both directions, for example, from lithosphere to hydrosphere and from hydrosphere to lithosphere.Full Answer >
According to astrobiologist Jack O'Malley-James of the University of St. Andrews in Scotland, the sun will grow large enough to extinguish all life on Earth in roughly 2.8 billion years. The planet's non-microbial life will become extinct in 800 million to 1.3 billion years.Full Answer >