Which of the following statements are FALSE of models? (select all that applies) A.) A scientific model must show one or more mechanisms that can explain what causes certain observations.

B.) It is possible to represent all of the components and relationships of a phenomenon.

C.) Models are revised many times as new information is gained.

D.) Models are completely accurate because choices have to be made to simplify the model.

E.) When creating a model, t is important to include the components that play a significant role in explaining the phenomenon or answering the question.

F.) Models must explain or make predictions about observations.

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )