Practice Test 8

A student is revising an explanatory paragraph about the Underground Railroad. The draft reads:

"The Underground Railroad was a bunch of secret routes and safe places that helped enslaved people escape. People were really brave, and it is crazy to think about how they did it. They did not have a lot of stuff, but they kept going anyway."

Which revision best establishes a formal explanatory style while keeping the main ideas?

A student is checking whether an explanation maintains a consistent formal style. Read the paragraph below.

"Bacteria reproduce through binary fission, a process in which one cell copies its DNA and divides into two identical cells. This method allows populations to increase rapidly under favorable conditions. But, like, it is basically just splitting in half, so it is not that complicated."

Which revision best maintains consistent formal explanatory style throughout the paragraph?