write 50 information about earth?????
Answers
- We're the third rock from the sun.
- Earth is a squashed sphere.
- The planet has a waistline.
- Earth is on the move
- The planet moves around the sun
- Earth is old.
- The planet is recycled.
- Our moon quakes
- Alaska had the largest earthquake.
- The hottest spot is in Libya.
- Plate Tectonics Keep the Planet Comfortable.
- Earth is Mostly Iron, Oxygen and Silicon.
- 70% of the Earth’s Surface is Covered in Water.
- The Earth’s Atmosphere Extends to a Distance of 10,000 km.
- The Earth’s Molten Iron Core Creates a Magnetic Field.
- Earth Doesn’t Take 24 Hours to Rotate on its Axis.
- A year on Earth isn’t 365 days.
- Earth has 1 Moon and 2 Co-Orbital Satellites.
- Earth is the Only Planet Known to Have Life.
- Mount Everest is highest place on Earth.
- Kangchenjunga is second highest place on Earth.
- 5.972 × 10^24 kg is mass of Earth.
- There are 7 seas on Earth.
- Atlantic Ocean is warmer ocean on Earth.
- A year on Earth is not 365 days as widely thought, but rather 365.2564 days. The extra 0.2564 days is where the extra day that is added onto February every leap year, or every four years, comes from.
- Contrary to popular belief it does not take the Earth 24 hours to complete a single rotation, it actually takes it 23 hours, 56 minutes and 4 seconds to complete a rotation and astronomers call this a sidereal day.
- The planet Earth weighs approximately 5,974,000,000,000,000,000,000,000 kilograms (nearly 6 septillion kg), that’s roughly the same amount of weight as 54,807,339,449,541,284,403 (approx 55 quintillion) Blue Whales – the heaviest creature on the Earth itself!
- The Earth tilts at roughly 66 degrees.
- If you drilled a tunnel straight through the Earth and jumped in, then it would take you about 42 minutes to get to the other side!
- The Mantle is the largest layers of the Earth, approximately 2,970 km thick – this makes up about 84% of the Earth’s total volume.
- Th Earth’s core consists of two layers, an outer-layer and an inner-layer. Although the specific percentages are unknown, both the outer and inner layers of the Earth’s Core consist of mainly Iron and Nickel.
- The outer-layer of the Earth’s core is believed to be liquid, whereas the inner-layer of the Core is believed to be a solid as hot as the Sun!
- In the past there have been many misconceptions about the Earth, such as when people thought it was the center of the Solar System and that all other planets orbited it! Or when they thought it was flat and that a person could sail off the edge by sailing over the horizon!
- The Earth’s rotation is gradually slowing down. However it is slowing down so very minimally (approximately 17 milliseconds per hundred years) that it will be about 140 million years before the Earth experiences 25 hour days.
- Of all the planets in our solar system, the Earth is the most dense with a density of roughly 5.52 grams per cubic centimeter. The second densest planet in our solar system is Mercury with a density of 5.427 grams per cubic centimeter.
- The Earth is the only planet in our solar system not named after either a Greek or Roman God.
Answer:
Explanation:
Earth is the third planet from the Sun and the only astronomical object known to harbor life. According to radiometric dating estimation and other evidence, Earth formed over 4.5 billion years ago. Earth's gravity interacts with other objects in space, especially the Sun and the Moon, which is Earth's only natural satellite. Earth orbits around the Sun in about 365.25 days.
Earth's axis of rotation is tilted with respect to its orbital plane, producing seasons on Earth. The gravitational interaction between Earth and the Moon causes tides, stabilizes Earth's orientation on its axis, and gradually slows its rotation. Earth is the densest planet in the Solar System and the largest and most massive of the four rocky planets.
Earth's outer layer (lithosphere) is divided into several rigid tectonic plates that migrate across the surface over many millions of years. About 29% of Earth's surface is land consisting of continents and islands. The remaining 71% is covered with water, mostly by oceans but also lakes, rivers and other fresh water, which all together constitute the hydrosphere. The majority of Earth's polar regions are covered in ice, including the Antarctic ice sheet and the sea ice of the Arctic ice pack. Earth's interior remains active with a solid iron inner core, a liquid outer core that generates Earth's magnetic field, and a convecting mantle that drives plate tectonics.
Within the first billion years of Earth's history, life appeared in the oceans and began to affect Earth's atmosphere and surface, leading to the proliferation of anaerobic and, later, aerobic organisms. Some geological evidence indicates that life may have arisen as early as 4.1 billion years ago. Since then, the combination of Earth's distance from the Sun, physical properties and geological history have allowed life to evolve and thrive. In the history of life on Earth, biodiversity has gone through long periods of expansion, occasionally punctuated by mass extinctions. Over 99% of all species that ever lived on Earth are extinct. Estimates of the number of species on Earth today vary widely; most species have not been described. Over 7.7 billion humans live on Earth and depend on its biosphere and natural resources for their survival.[24]
Contents
1 Etymology
2 Chronology
2.1 Formation
2.2 Geological history
2.3 Origin of life and evolution
2.4 Future
3 Physical characteristics
3.1 Shape
3.2 Chemical composition
3.3 Internal structure
3.4 Heat
3.5 Tectonic plates
3.6 Surface
3.7 Hydrosphere
3.8 Atmosphere
3.9 Gravitational field
3.10 Magnetic field
4 Orbit and rotation
4.1 Rotation
4.2 Orbit
4.3 Axial tilt and seasons
5 Habitability
5.1 Biosphere
5.2 Natural resources and land use
5.3 Natural and environmental hazards
6 Human geography
7 Moon
8 Asteroids and artificial satellites
9 Cultural and historical viewpoint
10 See also
11 Notes
12 References
13 Further reading
14 External links
Etymology