Which of these is a major source of greenhouse gas emissions? MCQ with Answer and Explanation

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Which of these is a major source of greenhouse gas emissions?

A. Fossil Fuel Burning

B. Solar Panel Manufacturing

C. Electric Cars

D. Planting Forests

Answer: Option A

Solution (By JKSSB Mock Tests)

Burning coal, oil, and gas for electricity and transport is a leading cause of emissions.

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Which gas is produced by plants during the day?

A. Hydrogen

B. Carbon dioxide

C. Nitrogen

D. Oxygen

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Correct Answer: Option D

Explanation:
Plants release oxygen as a byproduct of photosynthesis during the day.

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Question #2

What is the term for the biological process where cells divide to form two identical cells?

A. Meiosis

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D. Mitosis

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Correct Answer: Option D

Explanation:
Mitosis is the process of cell division resulting in two daughter cells with identical genetic material.

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Question #3

What is 'Phishing'?

A. A method to speed up a computer

B. A way to download large files

C. A method used to trick users into revealing information

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Correct Answer: Option C

Explanation:
Phishing is a deceptive technique used by criminals to steal sensitive information.

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