A.They are found under the oceans. B.They were most active when Earth was first formed. C.Their emissions created the Earth's atmosphere. D.Their fumes are mostly water. 如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: D 复制 纠错...
poor as it is.You may perhaps have some pleasant, thrilling,glorious hourss, even in a poor-house.The setting sun is reflected from the windows of
Then on March 14, the ship reached orbital speed and demonstrated a first step toward being able to refuel in space,transferring several tons of liquid oxygenbetween internal tanks. In June, Starship survived the maximum heat of reentering Earth's atmosphere and performed akey flip and landing ...
How Did the Dinosaurs Compare? Most people believe that the largest animals to ever exist on Earth were the dinosaurs. However, one of the largest land dinosaurs, the sauropod Argentinosaurus, weighed only about 180,000 pounds (81,647 kg). That's little more than half the size of an adult...
When you think of the Arctic (北极), you imagine an icy land of pure white snow. Others imagine it as the last really clean place left on earth. We have polluted the deepest oceans with plastic rubbish. "And now", CNN says, "It's the Arctic's turn."German...
和首字母,形容词natural:自然的,在句中充当定语修饰名词disaster,故答案为natural。 2、答案:prevent 解析:结合句意(我们不能阻止它们...)和首字母,动词prevent:阻止,can't是can not的缩写形式,情态动词can后面接动词原形,故答案为prevent。 3、答案:happen 解析:结合句意(...我们不知道它们...
Many people have wondered what makes the oceans rise and fall on the world's beaches twice a day.Those tides are caused by the force of the Moon's graveity(地心引力) and the rotation(自转) of the Earth.Gravity acts on the center of any solid object.The Earth is mostly molten(熔化的...
3. Why did fighters paint their faces when they fought? A.To look friendly. B.To look scary. C.To look funny. D.To look painful.4. What can we know about face paint? A.Painting on the walls is the first form of art. B.Animal fat is used to make different colorings. C....
Thenext solar eclipsewill be a partial solar eclipse on March 29, 2025, and will be visible over parts of Europe, Asia, Africa, North America, South America and the Atlantic and Arctic Oceans. Asolar eclipseoccurs whenthe moonis positioned betweenEarthand the sun and casts a shadow over Ea...
As the Earth and oceans get warmer, the atmosphere holds more moisture. This comes down as precipitation. So when it gets cold enough to snow, there will be more of it. Can the weather make arthritis worse? Syda Productions // Shutterstock ...