What invention from the 2nd industrial revolution had the most impact on american life? why?

What occupation did muhammad have before the first revelation? politician military general trader religious leader mark this and retum save and exit

What are the major problems with a command economy?

What are your thoughts about " the attacking on the twin towers". in your own words a little paragraph its for a project i am doing and i want to get intel from other people so that i can put it on my poster. for anyone who gives me there opinion on it : ) enter you name when you type the paragraph more than one person to respond.