“Summer Solstice” comes on June 21 to June 22 each year when the sun altitude arrive the highest in north. This day has the longest day time of the year in the Northern Hemisphere and the sunshine in many cities in south China may last fourteen hours per day.After this day, the spot...
What planet has the shortest day? Jupiteris the fastest spinning planet in our Solar System, rotating on average once in just under 10 hours. That is very fast, especially considering how large Jupiter is. This means that Jupiter has the shortest day of all the planets in the Solar System....
Our continuous use of fossil fuels is changing the atmosphere and warming the planet, but the observed temperatures suggested there was also something else at work. Some potential theories for the abrupt warming were put forth, in...
Which year was the hottest since record-keeping began in1880? It's been clear that 2015 has stolen the award from 2014,with 10 out of 12 months being the warmest respective months on record.While it wasn't necessarily a surprise that 2015 finished in first place, its victory was ...
77. Which sentence in the passage can be replaced by the following sentence? (Special English has played a more important part in many areas over the years.) 78. Please fill in the blank in the first paragraph with proper words or phrases to complete the sentence.(Please answer within 10...
In fact,while the whole world is getting warmer, the Arctic is warming twice as fast as the rest of the planet. This is called the polar amplification effect.可知当整个世 界变暖时,北极圈变暖的速度是地球其 他地方的两倍。 这就叫极地放大效应。 根据上下文,可知此处This指的就是北 极圈变暖速度...
The Earth's Atmosphere: The Earth's atmosphere is composed primarily of three gases, nitrogen (78%), oxygen (21%), and argon (0.9%). The only planet with an atmosphere containing significant quantities of oxygen, the Earth is also the only planet we've discovered so far where life exists...
Which is the hottest layer of the atmosphere? The thermosphereis often considered the "hot layer" because it contains the warmest temperatures in the atmosphere. What height is the ozone layer? The peak concentration of ozone occurs at an altitude ofroughly 32 kilometers (20 miles) abovethe su...
Sunlight never touches some parts because of the planet’s special position. Without air, there are great temperature differences between the coldest and hottest parts. Mercury days are so long that there are big differences between temperatures on the daylight side and the night side. Mercury was...
Scientists generally credit violent collisions between tectonic plates, the mobile fragments of Earth's rocky outer shell, with sculpting the planet's surface, as, for example, when what is now the Indian subcontinent collided with Asia, producing the Himalayan Mountains. However, plate tectonics can...