题目What causes day and night? A. The rotation of the Earth B. The revolution of the Earth C. The sun's heat D. The moon's gravity 相关知识点: 试题来源: 解析 A。解析:地球的自转产生了昼夜交替。地球的公转产生四季变化。太阳的热和月亮的引力都不是产生昼夜的原因。
conservenaturalresourcesandenergy.Itwillalsosaveyouandyourcommunity.Besuretostart doingyourparttosaveourbeautifulhometoday! ( )1.WhydidIPCCreleaseitsfirstassessmentofclimatescience? A.Toappealtopeopletoreducecarbonlevels. B.Tostatetheearth?stemperaturehitsarecordhigh. C.Toinformreadersclimatechangeissevere. ...
Moon phases reveal the passage of time in the night sky. Some nights when we look up at the moon, it is full and bright; sometimes it is just a sliver of silvery light. These changes in appearance are the phases of the moon. As the moon orbits Earth, it cycles through eight distinct...
Dr. Elizabeth MacDonald is a space physicist at NASA Goddard Space Flight Center and one of the founders of the citizen science site Aurorasaurus. What causes the movement and shape of auroras? Constantly changing input from the sun, varying responses from the Earth's upper atmosphere, and the...
UT0 is the version of Universal Time measured at a specific location. Since it does not take into account distorting factors like the constant movement of the Earth's poles (polar motion), it deviates from one location to another, making it a variant of Universal Time that, strictly speaking...
Diana and Roma’s Magical Mermaid Tales!(2025) Diana’s Popstar Princess Adventure(2025) Easy A(2010) First Daughter(2004) The Fortress(2021) Fortress: Sniper’s Eye(2022) GEM-tastic Earth Day Extravaganza(2025) Gnomeo & Juliet(2011) ...
1 People make tables, clothes, medicine, and musical instruments with it. Pandas may eat bamboo every day, but people can also eat it. 2 Some bamboo grows so quickly that people say they can watch it grow. The speed of growth depends on the type of bamboo, the earth and the season....
Read the full-text online article and more details about "What Sets Newly Found Super Earth Apart? It's Simple as Night and Day. (+Video)" by Spotts, Pete - The Christian Science Monitor, November 8, 2012By SpottsPete
—When is Teachers’ Day? —It’s on September 10th. (2)usually 通常地;一般地, 作频度副词,表示某事发生的频率,通常位于实义动词之前,助动词、情态动词或连系动词be之后。 Maryusuallygoes to school at 7. 位于实义动词...
1Because of the conflict between the Roman Catholic Church and the King of England, the far reaching movement of took place in England, started by Henry VIII. 【答案】the Reformation 【解析】罗马天主教与英国国王之间的矛盾加剧,亨利八世由于其婚姻受罗马天主教的阻挠,与罗马天主教决裂。他在英国...