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What is a main idea of “Louis Pasteur: Battle with Death”?

Pasteur is willing to risk his own life to test his treatment for rabies.

Pasteur owes his success to doctor friends who help him find a rabies cure.

Pasteur finds a clue to the cure for rabies in the saliva of infected humans.

Pasteur discovers a cure for anthrax in humans while working with farm animals.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

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