Scientists are trying to find out ___ thunderstorms form. A. what B. who C. how D. that 相关知识点: 试题来源: 解析 C。解析:本题考查宾语从句引导词。句子表达科学家正试图找出雷暴是如何形成的,是在询问方式,所以用how。选项A“what”表示事物,这里不是问雷暴形成的事物。选项B“who”用于指...
How Thunderstorms Form There are three stages to a thunderstorm’s life cycle: the cumulus stage, the mature stage, and the dissipation stage. When a thunderstorm begins to form, it does so at the cumulus stage. From there, the storm advances in severity until it reaches its peak at the ...
Frontal thunderstorms form when a cold airmass forces a warm, moist airmass above it. This violent lifting motion can develop into significant vertical movement, resulting in a thunderstorm. Layers of precipitation and hail form high in the cloud, and eventually fall to the ground as they cool....
When the wave reaches your ears, you hear it as thunder. You can tell how far away the lightning is by counting the number of seconds between the time you see the lightning and the time you hear the thunder.Here are some thunderstorm safety tips. When a thunderstorm is coming, they can...
They can actually form any time of day when the temperature falls rapidly higher up in the sky. These tall dark clouds are full of moisture and contain strong up and down air currents. Cumulonimbus clouds may tower more than 50,000 feet, and cover from just a few square miles up to ...
Now that we have discussed what thunderstorms are and how they actually form, let’s address the question we posed at the beginning of this article. Why Does It Seem Like Thunderstorms Occur Later In The Day? Although thunderstorms can (and do) occur at all hours of the day, it’s true...
Thunderstorms that form at night occurin the absence of heating at the ground by the sun. Consequently, the storms that form at night are usually "elevated," meaning that they form aloft above the cooler air near the ground, rather than near the ground, which only during the day can get...
Tornadoes - How Tornadoes Form By Rachelle Oblack They start when the sun heats the earth's surface and warms the layer of air above it. This warmed air rises and transfers heat to the upper levels of the atmosphere. As the air travels upward, it cools and the water vapor contained wit...
How does hail form? Hail is created when small water droplets are caught in the updraft of a thunderstorm. These water droplets are lifted higher and higher into the sky until they freeze into ice. Once they become heavy, they will start to fall. If the smaller hailstones get caught in ...
You need to know only one thing about thunderstorms. They’re lethal. Stay away, Thunderstorms can readily strike planes and people from the air. However, many characteristics of thunderstorms, specifically, how they breed and evolve, can help you to evade them and their hazards. ...