Read the excerpt from Into the Unknown by Stewart Ross. It was soon clear that the Ma Robert had serious design faults. Her engine was not powerful enough to drive her upstream against strong currents, and her boiler consumed vast quantities of wood: a day’s steaming needed one and a half day’s wood-cutting. Her hull was made of thin sheets of a new kind of steel that had not been tested. It soon developed so many holes that it leaked like a colander and had to be continually pumped out. “For us, steam was no labor-saving power,” Livingstone grumbled in his journal. He called the Ma Robert all sorts of names: “the wretched little steamer,” the “tin kettle,” and “the slow puffing Asthmatic.”

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Which text feature would best support the details in the excerpt?

a photograph of Charles Livingstone
an illustration of Ma Robert
a map of the African continent
a chart of the many uses of steam

An illustration of Ma Robert

Explanation:

Ma Robert (meaning: Robert's mom) was the steamboat used by David Livingstone, a Scottish physician and missionary. It was named in honor of his wife Mary and son Robert.

The given excerpt tells us about the steamboat and its numerous flaws. The text feature that would best support these details is an illustration of Ma Robert.

The man mentioned in this passage is named David Livingstone, not Charles. The fact that a wrong name is mentioned doesn't matter, because a photo of Livingstone wouldn't be fitting either way. This passage is not about him. The same goes for the map of the African continent. The steamboat was used for expeditions on its territory, but that is not the main point. A chart of many uses of steam is also not right, because it can be applied to many things, not just this boat.

This is why an illustration of Ma Robert, like the one pictured below, would be the best feature.

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explanation:

the turtle carries new life, oat seeds, over to the other side of the highway and plants them there.