Minamata disease is caused by the pollution of water with:
A. Arsenic
B. Cadmium
C. Lead
D. Mercury
Answer: Option D
Solution (By JKExamLibrary)
Minamata disease is a neurological syndrome caused by severe mercury poisoning. It was first discovered in Minamata city, Japan, due to the release of methylmercury in industrial wastewater from a chemical factory, which bioaccumulated in fish and shellfish consumed by the local population.
Explanation:
Silk is a natural protein fiber obtained from silkworm cocoons. Nylon, polyester, acrylic are synthetic polymers derived from petrochemicals.
Explanation:
Rutherford's experiment led to the nuclear model of the atom, concluding that almost all the mass and positive charge are concentrated in a very small central nucleus, while electrons orbit around it. Option B is Thomson's model, A is Bohr's model, and D is de Broglie's concept.
Explanation:
Gamma rays are high-frequency electromagnetic waves emitted from the nucleus. They have very high penetration power and are used in cancer therapy.
No comments yet. Be the first to start the discussion!