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FACT: The United States has more coal than any other fossil fuel resource.
Listen and answer the questions.
Coal is formed from ____.
How long does it take plants to turn into coal?
Complete the text you are listening to by dragging the correct word to each blank.
Coal is a black rock used for energy. It is made from plants. These plants lived millions of years ago. These plants even before the dinosaurs! Earth looked much different back then.
There were many . There were many forests. There were many plants that covered the world. After many years, the plants died. Then they formed a layer at the swamp bottom. Layer after layer of dead plants built up.
Floods and wind the plants under lots of . Soon, the plants were buried very deep underground.
Mountains formed over the buried plants. The mountains were very heavy, and they squeezed the plants!
Deep underground, the Earth is very hot. The heat from the Earth and the weight of the mountains to squish the plants.
After many years, the plants turned into the black rock we call . This process takes millions of years!
Read the text and answer the following questions.
Coal is a black rock used for energy. It is made from plants. These plants lived millions of years ago. These plants existed even before the dinosaurs! Earth looked much different back then.
There were many swamps. There were many forests. There were many plants that covered the world. After many years, the plants died. Then they formed a layer at the swamp bottom. Layer after layer of dead plants built up.
Floods and wind buried the plants under lots of dirt. Soon, the plants were buried very deep underground.
Mountains formed over the buried plants. The mountains were very heavy, and they squeezed the plants!
Deep underground, the Earth is very hot. The heat from the Earth and the weight of the mountains continued to squish the plants.
After many years, the plants turned into the black rock we call coal. This process takes millions of years!
What happens before mountains form over plants?
Which idea best explains how old the plants are?
What is this article mostly about?
Put the right word in each blank. The sentences are from the text.
Put the right word in each blank. These are new sentences for words in the text.