What is the main source of light on earth? A. The moon B. Stars C. The sun D. Fireflies 相关知识点: 试题来源: 解析 C。解析:地球上主要的光源是太阳。选项 A 月亮是反射太阳光;选项 B 星星距离地球远,不是主要光源;选项 D 萤火虫的光很微弱不是主要光源。
结果1 题目The sun is a star. What is the main source of energy for life on Earth? A. the moon B. the stars C. the sun D. the planets 相关知识点: 试题来源: 解析 C。本题考查科学知识。太阳是地球上生命的主要能量来源。反馈 收藏 ...
What's the moon phase tonight? While the moon has four primary phases each month, it is always changing. As you observe the moon during the month, watch as it grows from a new moon to a first quarter moon. As it grows, it is known as a waxing moon, and gradually increases from a...
Astronomy is the study of stars and planets, as well as the study of astronomical events. For example, the full moon is a regular astronomical event that happens about once every four weeks. Answer and Explanation:1 A solar eclipse occurs when the Moon casts its shadow on Earth. It is ca...
During a full eclipse, however, something spectacular happens. The moon is fully in Earth's shadow. At the same time, a little bit of light from Earth's sunrises and sunsets (on the disk of the planet) falls on the surface of the moon. Because the light waves are stretched out, they...
6. What will be the same for the objects on the moon than on the earth? ___ A. mass B. gravity C. free-fall acceleration D. gravitationa acceleration 相关知识点: 试题来源: 解析 物体在地球和月球上的质量相同。因此,选项 A 是正确的。 本题问的是物体在地球和月球上哪个物理量相同。 *...
What would happen to the Earth without our moon? A. Days on the Earth would be longer. B. Only two seasons would be left. C. The weather would be changeable. D. It would be cold E. very night of the year. 相关知识点:
Lileks, James
(3) If the Moon has its own special time zone, a full day of it can be about ___ on Earth. A . 56 microseconds B . 24 hours C . two weeks D . 29.5 days (4) What is the writer's purpose in writing the passage? A . To give information about space travel. B . To ...
The new Moon in Pisces is a magical time to feel your intuition and open yourself up to universal guidance. Like many new Moons, it’s an opportunity to set intentions that call in the vibrations needed to manifest your dreams. On a new Moon in Pisces, though, the cosmos supports you ...