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प्रश्न
Excessive exposure of humans to UV-rays results in ______.
पर्याय
damage to immune system
peptic ulcers
skin cancer
both peptic ulcers and skin cancer
MCQ
रिकाम्या जागा भरा
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उत्तर
Excessive exposure of humans to UV-rays results in damage to immune system and skin cancer.
Explanation:
UV radiation can damage the immune system and can cause skin cancer. It does not cause peptic ulcers, soboth peptic ulcers and skin cancer is not correct option.
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