When burning, Yes.
A normal fire in a steel-frame building can soften the structure to the point of collapse.
Building laws / regulations require that all the structural steelwork is either covered in a protective coating (such as intumescent paint) or boxed in with fire-resistant plaster, so the fire can be extinguished before the building is weakened - or at least give people time to get out.
If that coating or plaster is damaged by impact or an explosion, the steel is exposed and the building can collapse relatively quickly.
(The common intumescent coatings just look like paint until exposed to fire, so the steelwork may appear to have no particular protection - but it always does).
Information:
http://www.steelconstruction.info/Fire_p...
See the images below - small buildings with steel-frame roofs after fires; you can see the amount of "sagging" and distortion on structures that have no particularly high loads.
These have burned long enough to destroy any protection, or they did not have any as the structure does not support occupied space.
http://www.champnews.com/Picture_Library...
http://thelincolnite.co.uk/wp-content/up...
<span>Article IV of the Constitution lays out the relationship of states to other states, and states themselves to the Federal Government. It details the obligations that a state has to another state, or other groups of states. It also details the responsibilities that the Federal Government has over individual states or groups of states. These relationships can become quite complex, but stem from simple principles.</span>
I absolutely agree with the idea that school cafeterias should be required to provide vegetarian or vegan lunch options.
The reason for this is that not all people are non-vegetarian and therefore they may be needing those food options. Also, they cannot be hungry for an entire day, so its best to give them variable options.
Also, even if everybody is non-vegetarian, it won't harm to keep the vegan food in the menu, because may have their moods and may want to eat something light and healthy. The vegetarian food may serve the purpose. And it's always good to have a lot of variety in food options so that kids can freely choose.
To learn more about vegan food, click
brainly.com/question/16847078
#SPJ4
Answer:
While these mounds take many forms and served different purposes, with each in a sense telling its own story, all were built entirely by hand, usually by piling up earth one basket-full at a time. Some served as burial mounds for the honored dead, while other flat-topped mounds were parts of large cities or towns and held temples or ceremonial buildings, and still others were built in the shape of giant animals.
