What text/ book? Need more details
Answer:
Although a whale's heart can be as big as a car, it beats only nine times per minute.
Answer:
In simple words, A summary refers to the brief reinterpretation of a prolonged written paragraph comprising the much more important aspects of the writer. Summary significantly improves both ones reading as well as writing skill sets. In short , you need to read a paragraph closely, find key ideas as well as interpret those ideas. Then you have to note down certain ideas quickly within the next few statements or a section.
Is it 4000 psi, 3500psi and 3000psi