2. What is a pedigree?

please give brainlestExplanation:

1the record of descent of an animal, showing it to be purebred.

a purebred animal.

2the recorded ancestry, especially upper-class ancestry, of a person or family.

the origin and the history of something

Explanation:

Pedigrees use a standard set of symbols to make them easier to understand. Males are represented by squares, while females are represented by circles. Parents are connected by horizontal lines, and vertical lines stemming from horizontal lines lead to the symbols for their offspring

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high

answerall of the above;