What is the main force responsible for aeolian erosion? 风力侵蚀主要由什么力量引起?
Wind. 风。
What are the three main types of aeolian transportation? 风力搬运的三种主要方式是什么?
Suspension, saltation and surface creep. 悬浮、跃移和蠕移。
What natural force forms and moves sand dunes? 什么自然力量形成并移动沙丘?
Wind. 风。
What type of rock is more resistant to erosion: hard rock or soft rock? 哪种岩石更能抵抗侵蚀:坚硬岩石还是柔软岩石?
Hard rock. 坚硬岩石。
How many days are there in a leap year? 闰年有多少天?
366 days. 366天。
What does the word aeolian mean? Aeolian(风成)是什么意思?
Processes caused by wind. 由风引起的过程。
Which type of transportation involves very small particles floating in the air? 哪种搬运方式会使非常细小的颗粒漂浮在空中?
Suspension (悬浮).
What is a sand dune? 什么是沙丘?
A hill or mound of sand formed by wind deposition. 由风力沉积形成的沙丘或沙堆。
What is a mesa? 什么是台地?
A large, flat-topped hill with steep sides. 顶部平坦、四周陡峭的大型山丘。
Which planet is known as the Red Planet? 哪颗行星被称为红色星球?
Mars. 火星。
What is abrasion in aeolian erosion? 什么是风力磨蚀?
Sand particles carried by wind hit and wear away rock surfaces. 风携带的沙粒撞击岩石,使岩石表面逐渐磨损。
What is saltation? 什么是跃移?
Sand particles bounce and jump along the ground. 沙粒沿着地面不断跳跃移动。
Why are there often few plants in deserts, allowing wind erosion to occur easily? 为什么沙漠中植物通常较少,使风力侵蚀更容易发生?
There is little vegetation to hold the soil and sand in place. 缺少植被固定土壤和沙子。
What is the main difference between a mesa and a butte? 台地和孤峰台地的主要区别是什么?
A mesa is larger and wider, while a butte is smaller and narrower. 台地更大、更宽,而孤峰台地更小、更窄。
What is the largest animal in the world? 世界上最大的动物是什么?
The blue whale. 蓝鲸。
Explain how deflation changes the landscape. 解释风蚀搬走地表物质如何改变地貌。
Wind removes loose sand and dust from the ground, lowering the land surface. 风吹走地面松散的沙子和尘土,使地表降低。
What is surface creep, and what type of sediment does it move? 什么是蠕移?它搬运什么类型的沉积物?
Larger, heavier particles roll or slide along the ground. 较大、较重的颗粒沿着地面滚动或滑动。
Explain how wind creates a sand dune. 解释风是如何形成沙丘的。
Wind transports sand and deposits it when it loses energy. More sand accumulates over time, forming a dune. 风搬运沙子,并在风力减弱时将沙子沉积下来。随着沙子不断堆积,最终形成沙丘。
What happens to softer rock when it is surrounded by harder rock during erosion? 侵蚀过程中,如果较软的岩石被较硬的岩石包围,会发生什么?
The softer rock erodes more quickly, while the harder rock remains standing. 较软的岩石侵蚀得更快,而较硬的岩石会保留下来。
Which country gifted the Statue of Liberty to the United States? 哪个国家将自由女神像赠送给美国?
France. 法国。
Explain the difference between abrasion and deflation. 解释风力磨蚀和风蚀搬走地表物质之间的区别。
Abrasion wears down rocks when wind-blown particles hit them. Deflation removes loose sediment from the ground. 风力磨蚀是风携带的颗粒撞击并磨损岩石。风蚀则是风吹走地表松散的沉积物。
A strong wind carries dust high into the air, makes sand bounce along the ground and moves small stones by rolling. Identify all three transportation processes. 强风将尘土吹到空中,使沙粒沿地面跳跃,并使小石子滚动。指出这三种搬运方式。
Dust: suspension. Sand: saltation. Small stones: surface creep. 尘土:悬浮。沙粒:跃移。小石子:蠕移。
Explain why sand dunes are common in both deserts and coastal areas. 解释为什么沙漠和沿海地区都常见沙丘。
Both areas have plenty of loose sediment and strong winds. Limited vegetation allows sand to move and accumulate more easily. 这两个地区都有大量松散的沉积物和较强的风。植被较少,使沙子更容易移动和堆积。
Explain how different layers of hard and soft rock can eventually create a mesa, butte and pinnacle. 解释不同硬度的岩层如何逐渐形成台地、孤峰台地和岩石尖峰。
Softer rock erodes faster than harder rock. The harder rock protects the land beneath it. Over time, the landform becomes smaller as erosion continues, changing from a mesa to a butte and eventually a narrow pinnacle. 较软的岩石比坚硬岩石侵蚀得更快。坚硬岩石保护下方的地面。随着侵蚀持续进行,地貌逐渐缩小,可能从台地变成孤峰台地,最终形成狭窄的岩石尖峰。
What is the capital city of Canada? 加拿大的首都是哪座城市?
Ottawa 渥太华