No. If you are a a native-born or naturalized American citizen your citizenship cannot be removed from you - UNLESS - you used fraud in order to gain your American citizenship. In THAT case you could be deported to your country of origin.
If you are a naturalized citizen, probably not, but you will be treated just like any other criminal defendant charged with the same offense.
You would have to commit a terrible crime.
No you cannot lose it generally, you can only lose it if 1) you have commited some kind of major crime 2) you have lied when applying for citizenship 3) you got another countries nationality/citizenship before 2002
Never.
Not unless you renounce your Canadian citizenship voluntarily.
I'm pretty sure that if you abuse a child or commit some kind of crime then you can loose custody of the child/children.
Although another country may grant citizenship in their country to a U.S. citizen the U.S. does not recognize or grant dual citizenship. A U.S. citizen "forswears allegiance" to any other power. See: http://www.uscis.gov/portal/site/uscis/menuitem.eb1d4c2a3e5b9ac89243c6a7543f6d1a/?vgnextoid=96719c7755cb9010VgnVCM10000045f3d6a1RCRD&vgnextchannel=96719c7755cb9010VgnVCM10000045f3d6a1RCRD See also: http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextoid=931696981298d010VgnVCM10000048f3d6a1RCRD
you can have two citizenships
Most people commit crime when the want something that they think they cannot acquire legally or if it is a crime of violence because they lose their temper. It can be somethoing committed in anger or it can be something illegal that the person did not realize it was illega. There are numerous other reasons but too numerous to list.
no you won't, you will have a dual citizenship which ok, but you can't swear to both countries
No!
According to the Ethiopian Nationality Law Proclamation, one can lose their Ethiopian citizenship if they renounce it. One can also lose their citizenship if one of the parents of an Ethiopian child is not an Ethiopian citizen. If one has been discharged from the law or gotten in trouble with the law loss of Ethiopian citizenship is also eminent.
you are the one who voluntare to loss your citizenship