With reference to carbon dioxide, which of the following statements is/are correct? 1. It is released from the interior of the Earth during volcanic eruption. 2. It corrodes metal surfaces. 3. It is required for the green plants for their survival. Select

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Q: 21 (IES/2016)
With reference to carbon dioxide, which of the following statements is/are correct?
1. It is released from the interior of the Earth during volcanic eruption.
2. It corrodes metal surfaces.
3. It is required for the green plants for their survival.
Select the correct answer using the code given below

question_subject: 

Ecology

question_exam: 

IES

stats: 

0,141,61,17,39,5,141

keywords: 

{'carbon dioxide': [2, 0, 5, 6], 'green plants': [1, 0, 0, 1], 'volcanic eruption': [5, 0, 2, 5], 'earth': [0, 1, 1, 1]}

The correct answer is option 4: 1, 2 and 3. Let`s dissect each statement to understand why it is correct or incorrect.

Statement 1: "It is released from the interior of the Earth during volcanic eruption." This statement is correct. Volcanic eruptions release large amounts of carbon dioxide into the atmosphere as part of the gases and ash expelled from the volcano.

Statement 2: "It corrodes metal surfaces." This statement is correct. Carbon dioxide can dissolve in water to form carbonic acid, which is a weak acid that can corrode metal surfaces over time.

Statement 3: "It is required for the green plants for their survival." This statement is correct. Green plants use carbon dioxide during photosynthesis, a process by which they convert carbon dioxide and sunlight into glucose and oxygen. Carbon dioxide is an essential component for plants to produce their food.

Therefore, all three statements are correct. Carbon dioxide is released during volcanic eruptions, it can corrode metal surfaces when dissolved in water, and it is necessary for the survival of green plants.