Read this passage: “A volcano is an opening in Earth where hot melted rock can come out. The melted rock under the ground is called magma. When magma reaches the surface, it is called lava. Lava can flow down the side of a volcano and cool into hard rock. Scientists watch volcanoes for changes that may give warnings.” What is the passage mainly about?
Please select an answer first.
Correct answer: A
The correct answer is What volcanoes are and how scientists watch them.
- Read the passage: Look for the sentence or group of details that supports the answer.
- Use text evidence: The passage defines a volcano, explains magma and lava, and describes how scientists watch for changes.
- Check the choice: The correct choice is What volcanoes are and how scientists watch them.
The passage defines a volcano, explains magma and lava, and describes how scientists watch for changes.
