(Earthquake) Do earthquakes happen everyday or over time along plate boundaries like between Africa and South America? Since it is a pattern recorded over history, can you make predictions?

This matter because..

that's what i got you can count the number of atoms

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

answer7,570,82356 cubic centimeters;