Afriend says, "stars produce energy by a fusion chain reaction of helium into hydrogen." evaluate the validity of this statement. a) it is an valid statement. stars produce energy by a fusion chain reaction of hydrogen into helium. b) it is an invalid statement. stars produce energy by a fusion chain reaction of hydrogen into helium. c) it is an invalid statement. stars produce energy by a fission chain reaction of hydrogen into helium. d) it is an valid statement. stars produce energy by fission and fusion chain reactions of hydrogen into helium and vice versa.

It is an invalid statement. Stars produce energy by a fusion chain reaction of hydrogen into helium.

B) It is an invalid statement. Stars produce energy by a fusion chain reaction of hydrogen into helium.

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation: