Volcanoes - Marvel Education

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Practice Reading: Reading Fill in the Blanks ID: #31629 Volcanoes

Instructions ›

In the text below some words are missing. Drag words from the box below to the appropriate place in the text. To undo an answer choice, drag the word back to the box below the text.

* Drag the correct answer into all target fields

Volcanoes blast more than 100 million tons of carbon dioxide into the atmosphere every year, but the gas is usually . When a volcano erupts, carbon dioxide spreads out into the atmosphere and isn't in one spot. But sometimes the gas gets trapped under enormous pressure. If it escapes to the surface in a dense , it can push out oxygen-rich air and become deadly.

concentrated organ harmless pointed underground grained cloud

Result:

A.I. Explanation:

Correct answer: harmless
Explanation: The word 'harmless' fits grammatically as it is an adjective that describes the state of carbon dioxide in the context of the sentence. It aligns with the overall sentiment that, despite the large amounts emitted, the gas does not pose a threat under normal circumstances.
Meaning: 'Harmless' means not causing or capable of causing harm; safe.
Wrong options:
concentrated: 'Concentrated' is an adjective that describes something that is gathered in one place, which contradicts the context of the gas being safe.
underground: 'Underground' is an adjective that refers to something located beneath the surface, which does not describe the nature of carbon dioxide in this context.
cloud: 'Cloud' is a noun that refers to a visible mass of condensed water vapor, which does not fit as a description of carbon dioxide's safety.
organ: 'Organ' is a noun that refers to a part of an organism, which is irrelevant in this context.
pointed: 'Pointed' is an adjective that describes something with a sharp end, which does not relate to the safety of carbon dioxide in the atmosphere.
grained: 'Grained' is an adjective that describes texture, typically of materials, which does not apply to the gaseous state of carbon dioxide.
Correct answer: concentrated
Explanation: The term 'concentrated' is an adjective that describes the state of carbon dioxide not being gathered in one location. This fits grammatically and contextually as it explains how the gas disperses in the atmosphere after an eruption.
Meaning: 'Concentrated' means gathered together or made denser in one place.
Wrong options:
harmless: 'Harmless' describes the safety of carbon dioxide, which does not fit the context of its distribution in the atmosphere.
underground: 'Underground' refers to something beneath the surface, which does not relate to the dispersion of gas in the atmosphere.
cloud: 'Cloud' is a noun that refers to a mass of vapor, which does not describe the distribution of carbon dioxide.
organ: 'Organ' is a noun that refers to a part of a living organism, which is irrelevant in this context.
pointed: 'Pointed' is an adjective that describes a sharp end, which does not apply to the context of gas distribution.
grained: 'Grained' describes texture and does not relate to the concept of concentration in this context.
Correct answer: underground
Explanation: The word 'underground' is an adjective that describes the location of the trapped gas. It fits grammatically and contextually as it indicates where the carbon dioxide is held under pressure before it escapes.
Meaning: 'Underground' means located beneath the surface of the ground.
Wrong options:
harmless: 'Harmless' describes the safety of carbon dioxide, which does not fit the context of its location.
concentrated: 'Concentrated' refers to the density of the gas, which does not describe its location under pressure.
cloud: 'Cloud' is a noun that refers to a visible mass of vapor, which does not indicate a location.
organ: 'Organ' is a noun that refers to a part of a living organism, which is irrelevant in this context.
pointed: 'Pointed' is an adjective that describes a sharp end, which does not apply to the context of gas location.
grained: 'Grained' describes texture and does not relate to the concept of being beneath the surface.
Correct answer: cloud
Explanation: The term 'cloud' is a noun that describes a visible mass of gas, which fits grammatically and contextually as it indicates the form that carbon dioxide takes when it escapes to the surface.
Meaning: 'Cloud' refers to a visible mass of condensed vapor, in this case, carbon dioxide.
Wrong options:
harmless: 'Harmless' describes the safety of carbon dioxide, which does not fit the context of its physical form when escaping.
concentrated: 'Concentrated' refers to the density of the gas, which does not describe its physical manifestation.
underground: 'Underground' refers to something beneath the surface, which does not apply to the form of gas escaping.
organ: 'Organ' is a noun that refers to a part of a living organism, which is irrelevant in this context.
pointed: 'Pointed' is an adjective that describes a sharp end, which does not apply to the context of gas escaping.
grained: 'Grained' describes texture and does not relate to the concept of a gas mass.

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