A. The tilt of the Earth's axis B. The distance from the Sun C. The speed of rotation D. The shape of the E. arth 相关知识点: 试题来源: 解析 A。本题考查季节形成的原因。地球四季的形成主要是由于地球轴的倾斜,选项 B 距离太阳的距离不是主要原因;选项 C 自转速度与季节无关;选项 D 地...
According to van Bemmelen's investigation, contained in this number of the Journal, it would appear that since about 1840 the northern end of his mean magnetic axis of the Earth, deduced from magnetic declinations alone, has been moving in a northwest direction, i.e., increasing its north ...
百度试题 结果1 题目 ②The turning of the earth on its own axis is what makes the change from day to night. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
A.0.034 B.0.0014 C.1.2 D.0.87 E.0.095 F.0.082G、0.23 暂无答案
The full moon is the point where the entire face of the moon is illuminated by the sun as seen from Earth. "This is as close as we come to seeing the sun's illumination of the entire day side of the moon (so, technically, this would be the real half moon)," NASA wrote in its...
Earth’s Axis: This is what is known axial tilt, where a planet’s vertical axis is tilted a certain degree towards the ecliptic of the object it orbits (in this case, the Sun). Such a tilt results in there being a difference in how much sunlight reaches a given point on the surface...
A.7.3 B.3.6 C.6.28 D.3.14 E.23.14 F.6.1 暂无答案
The summer solstice marks the official start of astronomical summer and the longest day of the year. It occurs when one of Earth's poles is tilted toward the sun at its most extreme angle, and due to Earth's tilt, this happens twice a year. In the Northern Hemisphere, the summer solsti...
Earth's axis is the imaginary red line. timeanddate.com Axis Tilts the Same Way The direction ofEarth's tiltnearly doesn't change—the two hemispheres point toward the same position in space through the entire year. What does change, as Earth revolves around the Sun, is the position of ...
Earthquakes, melting ice sheets and natural oscillations in our planet's motion can cause changes of a few fractions of a second in the amount of time it takes the Earth to spin on its axis, according to NASA. In 1967, a committee at the United Nations officially adopted UTC as a ...