Question

अपने नाना जी को पत्र लिखकर उन्हें उनके जन्म दिन की बधाई दीजिए।​

Answer 1

Answer:

Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled. Blood appears red because of the large number of red blood cells, which get their color from the hemoglobin.

Answer 2

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