Question

____is essential for forming haemoglobin in the blood​

Answer 1

Iron is an essential element for blood production. About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin.

Answer 2

Answer:

iron

that's why we should eat food which contain more iron

and it's mainly sources are

pomegranate and spinach in India

and rest I don't know