Heavy Metal and Radioactive Pollution — Important Questions
Telangana Open School (TOSS) · Class 12 · Chemistry
45 important questions from Heavy Metal and Radioactive Pollution for Telangana Open School (TOSS) Class 12 Chemistry, with answers.
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Important Questions from Heavy Metal and Radioactive Pollution
What is the main anthropogenic source of lead pollution in urban areas?
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Vehicle exhausts from leaded petrol
Tetraethyl lead was added to petrol to improve engine efficiency, and its combustion released lead into the air via exhausts.
Which of the following metals bioaccumulates and biomagnifies in the food chain?
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Mercury
Mercury, especially methylmercury, bioaccumulates in organisms and biomagnifies up the food chain.
Which disease is caused by cadmium pollution in Japan?
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Itai-itai disease
Itai-itai disease in Japan was caused by cadmium replacing calcium in bones, leading to severe pain and fractures.
Which of the following is a natural source of radioactive pollution?
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Cosmic rays
Cosmic rays are high-energy radiations from space and are a natural source of ionizing radiation.
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