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Have you ever wondered where chalk comes from? Tiny animals called foraminifera live in the sea. Each of these small living animals makes a tiny shell out of lime. When they die, their shells remain. With time, these shells become layers of white rock which we call chalk. Chalk is often found in places that were once underwater.

Which sentence from the passage BEST supports the main idea that "Real chalk is made by a small sea animal."

Responses

Chalk is often found in places that were once underwater.

With time, these shells become layers of white rock which we call chalk.

Tiny animals called forminifera live in the sea.

Each of these small living animals makes a tiny shell out of lime.

User Jose Rojas
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Have you ever wondered where chalk comes from? Tiny animals called foraminifera live in the sea. Each of these small living animals makes a tiny shell out of lime. When they die, their shells remain. With time, these shells become layers of white rock which we call chalk. Chalk is often found in places that were once underwater.




Answer: “With time, these shells become layers of white rock which we call chalk. “

Explanation: this is the only one of the responses that shows chalk comes from a small animal.

User Rollo Tomazzi
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Answer:no but ill try to find the answer ..... this is the answer: Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. Calcite is an ionic salt called calcium carbonate or CaCO3. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite shells (coccoliths).

User Roy Daniels
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