They used faster or slower speeds in the model, and calculated how long it
would take particles to leave the
surfaces.
How does this detail develop the article's central
idea?
А
It shows how scientists found out how long to
wash your hands.
B
It shows why scientists wanted to study how
long to wash your hands.
C
It shows how long it took scientists to find out
how to best wash your hands.
D
It explains a past study used to find out how
to best wash your hands.

i think the beatles

explanation: they are talked about more.

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)

yes? ? what is your question lol cos this isnt

c. "but thy eternal summer shall not fade" (line 9)