Question

what is blood, why blood colour of red ​

Answer 1

Blood -

It's a thick fluid circulates all over our body and helps to transport oxygen to the various parts..

It's red because of the presence of -

$\huge{\boxed{\boxed{\bf{\red{Hemoglobin }}}}}$

Answer 2

Due to the presence of haemoglobin, colour of blood is red
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