Approximately one billion oxygen molecules. that is because there are about 250 million molecules of haemoglobin in each cell, and each haemoglobin molecule binds to 4 oxygen molecules
The correct answer is: a tourniquet.
The tourniquets are tight straps around an arm or leg and tightened to stop bleeding, used to control arterial and venous blood flow. In the past, tourniquet are used to control bleeding during amputations. Now, a tourniquet is used in surgeries to block arterial blood flow following and to minimize blood loss.
It is considered that the child's IQ will be 50% more than parents IQ.
<h3>let's take an example</h3>
If parent's IQ is 100
50% of 100 is 50
Now add these values
100+50=150
So, The child's IQ will be always higher than parents.
It spread by person to person
I think it would be D a pure substance
