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11y ago

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Continue Learning about Natural Sciences

What type of reaction takes place when chalk is being heated?

You get hot chalk


HoW to get own profile picture on app chalk 'n' talk?

im so glad i found the answer myself. anyway, you get out of the game. go to the main page. where it says :big moving button of :game start. :gallery :shop and click on : :gamevil info AND FINALLY. anyway, click on your pink custom picture or /a moustache blue man. and CHANGE IT~YOU can do other things through the link 'gamevil'. like, instant message a friend on Chalk n talk, and see what achievements you got. so sad theres no posts at all except mine, this one. :D glad you found it? :D i am : sallystar on chalk and talk~ see you there! :D (with a new prof pic~ XDD)


What marks the end of a geologic period?

Each era on the scale is separated from the next by a major event or change. Different spans of time on the time scale are usually delimited by major geological or paleontological events, such as mass extinctions.


Where o what from did the big bang got the energy to go bang?

The big bang marks the beginning of the expansion of space-time from minute to enormous. It marks the beginning of time t = 0. I don't know of any discussion of energy needed for the 'banging' of the big bang. Since it marks the beginning of time it makes no sense for energy to be needed to start the Universe with a bang, for this energy would thus need to be around 'before' the beginning of time. Also, the big bang is technically not an explosion, but an ('explosive') expansion of great great great great great great magnitude. This however does not resolve whether energy need be supplied for a bang or for an expansion. The answer seems to lie in a technicality of time.


Is gotten a proper word to use?

Yes, "gotten" is a proper word, primarily used in American English as the past participle of "get." While it may sound unusual to some speakers, particularly in British English where "got" is preferred, it is widely accepted in various contexts in American writing and speech. Its usage can convey different meanings, such as obtaining or becoming.