A or the first answer is correct have a good day
North Korea
hope this helps x
Oversimplifications often ignore complex or contradictory evidence
Answer:
Haemoglobin is a protein present in red blood cells, responsible for transporting oxygen from the lungs to cells in the body. Haemoglobin gives red blood cells their distinctive colour. Haemoglobin levels differ between individuals, but men usually have higher haemoglobin levels than women.
In most cases, the engineered works will have a series of dams and locks that create reservoirs of low speed current flow. These reservoirs are referred to as slack water levels, often just called levels.
