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How would life change if the earth took two years to go around the sun and seasons were twice as long?
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What would happen if the earth had twice as much oxygen?
If Earth had twice as much oxygen as it does, fires would start easier and burn hotter. Arthropods (insects, spiders and the like) could be a good deal larger than they are now.
Is Bismuth rare?
According to wikipedia it's about twice as abundant as gold in the earth's crust.
How winter come?
Winter, as with all seasonal variations, is due to the tilt of the Earth's axis with respect to its orbit around the Sun. The relative angle of the Earth to the Sun causes a decrease in the number of daylight hours, and a less vertical angle of sunlight, and hence cooler temperatures. As the Earth orbits the sun, the midpoint of the sunlit area moves from the Tropic of Cancer (23° 26′ 22″ N) to the Tropic of Capricorn (23°26′ 22″ S) and back again (only directly over the Equator twice a year). This causes less solar radiation to reach the northern or southern hemisphere. Shorter days and winter for the Northern Hemisphere last from December to February. Shorter days and winter for the Southern Hemisphere last from June to August.
Why do four seasons occur?
The cause of the seasons is the tilt of the Earth's axis of rotation (line from one pole to the other) with respect to the plane of its orbit around the Sun. During the course of the year, this changes the length of the day, and the angle of the Sun's rays, for all locations except those in the tropics near the equator.The seasons are not experienced the same way in every location, due to winds, currents, and local weather patterns. The seasons are reversed north or south of the equator : when it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere, and vice versa.Summer: the Sun's rays are more directly overhead, temperatures are warm, days are longerFall : the Sun's rays are less directly overhead, temperatures become cooler, days become shorterWinter: the Sun is farthest from directly overhead, temperatures are lowest, days are shortestSpring: the Sun becomes higher in the sky, temperatures become warmer, days become longer
Property of earth that causes seasons?
Some people think that the seasons are caused by Earth being close to the Sun in summer and far away from the Sun in winter.Actually, the seasons are caused by the TILT of Earth's AXIS, which is an imaginary line, that extends vertically from the North Pole, through this planet, and comes out to the South pole. It is tilted at 23.5° from it's perpendicular to it's orbital plane. When the Earth is on a particular side of the Sun, one hemisphere receives more direct Solar radiation then the other, that is while we have winter, and celebrate Christmas in the cold, Australians are surfing and celebrate St. Nick's day in the heat. Six months later when the Earth's position is on the opposite side of the sun, then the Northern Hemisphere receives more direct the solar radiation making for longer days and shorter nights and this is also the reason the Sun looms higher in the sky.The Earth's axis is tilted from perpendicular to the plane of the ecliptic by 23.45°. This tilting is what gives us the four seasons of the year - spring, summer, autumn (fall) and winter. Since the axis is tilted, different parts of the globe are oriented towards the Sun at different times of the year.Summer is warmer than winter (in each hemisphere) because the Sun's rays hit the Earth at a more direct angle during summer than during winter and also because the days are much longer than the nights during the summer. During the winter, the Sun's rays hit the Earth at an extreme angle, and the days are very short. These effects are due to the tilt of the Earth's axis.The changing distance of Earth from the Sun has little effect on what we refer to as seasons. It is instead the tilt of the planet's axis compared to the flat plane of its orbit.The Earth spins about its axis at a fixed angle to the plane of its orbit. Depending on the planet's orbital position, either northern or southern latitudes can receive both longer hours of daylight and more direct radiation (i.e. at an angle to the atmosphere closer to perpendicular).Twice during the year (spring and fall), the Sun appears to circle more directly over the equator, and all areas receive similar amounts of sunlight. From late December to late March, the Southern Hemisphere experiences summer while the Northern Hemisphere experiences winter. From late June to late September, the position is the other extreme, and it is summer in the Northern Hemisphere, winter in the southern.(see related question)Because the Earth tilts on its axis, in the winter (late December through early March) the northern hemisphere tilts away from the sun and receives less sunlight, and is therefore colder than it is at other times of the year, while the southern hemisphere tilts toward the sun and receives more sunlight and is warmer that it is at other times of the year; in the summer, it is the northern hemisphere that tilts toward the sun and the southern hemisphere that tilts away from the sun. That is why there are seasons. With no axial tilt, the Earth would have exactly the same climate all the time. Polar regions would still be colder than equatorial regions, but whatever the climate was, there would be no seasonal changes.When looking at the Earth and Sun from space, suppose you see the Earth on the left side of the Sun, and that it's also tilted so that the top of the planet is further away from the Sun than the bottom, so the axis looks like this (Earth is on the left):(\) (Sun)It is not the distance that is important, the difference in distance is insignificant overall. It is the ANGLE at which the sunlight strikes the portion of the earth. This is also why the Sun appears lower in the sky, and why the day is shorterNow, it's important that the tilt doesn't change. Half a year later, Earth will travel halfway around the sun so that it now appears to the right from your viewing position. Because the tilt is still to the left,(Sun) (\)Now the days are longer because the northern hemisphere so it receives radiation more nearly perpendicular and it's warmer. The southern hemisphere now has winter because the radiation is less perpendicular.You can see a similar effect when you shine a torch (flashlight) at a wall. If you hold it horizontal so the light strikes at right angles all areas receive the same amount of light. Now tilt the torch and you will see the shape of the beam striking the wall change. This is exactly what happens due to the tilt of the earth.At any given time, the hemisphere adjacent to the pole tilted toward the sun is the one that experiences spring and summer, whereas the one adjacent to the pole tilted away from the sun is the hemisphere experiencing autumn and winter.Because without them we wouldn't have spring, winter, and fall. It would be summer all the time day in and day out.The earth has a big, imaginary bar through the north pole to its center to the south pole, called an axis. This axis, during different seasons, tilts either toward or away from the sun. When the northern half of the axis is tilting towards the sun, the northern portion of the earth is closer to the sun, and is therefore hotter, and since the south is farther, it is cooler. So, when it is hottest in the north, it is coldest in the south. It works in the other direction, too. When the north is away from the sun, it is cold in the north and warm in the south (winter in the north, summer in the south). It is for this same reason that the temperatures of the equator are fairly constant and nonseasonal. Because they are the center of the earth, their distance from the sun is almost always the same.
Which planet has seasons twice as long as earth?
Mars
What planet has seasons like earth but they are twice as long?
Mars
Is the rotation of mars period longer or shorter than earths?
Longer. A day on Mars is around 39 minutes longer than a day on Earth, and it also takes Mars 668 days to make one trip around the sun (which means that seasons on Mars are also nearly twice as long as seasons on Earth are).
How would you present weight change if earth had twice the mass it does now?
If Earth had the same size but twice the mass you would weight twice as much
Why is a year on Mars twice as long as a year Earth?
It takes mars twice as long to make a full revolution around the sun than it takes earth.
What is the difference between the weather in mars and earth?
•Mars and earth both have 4 seasons but a year on Mars is about twice as long as it is on Earth, so the 4 seasons would amount to about 8 seasons on earth. • The temperatures on mars can be as low as -124.6 degrees Fahrenheit • Earth's atmosphere is mostly nitrogen and oxygen, where as Mars's atmosphere is made out of 95% Carbon-dioxide
How would your present weight change if earth had twice the mass that it does now?
It would double.
Why does Mars have seasons twice as long as Earth's seasons?
Because Mars' average distance from the sun is about 1.5 times the earth's average distance from the sun. We've known for about 400 years now that the period of an orbit is completely determined by the size and shape of the orbit. The size or mass of the orbiting body have no effect on the period. So ... farther from the sun, longer time to complete each orbit. It's as simple as that. Here's the math: For every planet in our solar system, the quantity (time for one orbit)2 / (1/2 of the largest dimension across the orbit)3 is the same number.
Does the moon revolve around the earth twice a day?
No, it orbits the earth once every 27.5 days or so.
Does the moon rotate on its axis twice each time it revolves around earth?
No. The moon rotates once for every orbit it makes around Earth.
Which of these planets has twice the earth's period of revolution?
Saturn has a period of revolution that is approximately twice as long as Earth's. While Earth takes about 365 days to complete one revolution around the Sun, Saturn takes roughly 29.5 Earth years to complete its orbit.
How would your present weight change if earth twice the mass that it doe now?
It would double.
