Iron, but there are some amounts of other dense elements like gold, platinum, and uranium.
Answer:
D
Explanation:
bs I just done that on my work and asked my teacher if it was right she said it was
Answer:
1 makes the most sense
Explanation:
There is no way blood pressure will be decreased especially if your ventricles are erratically contracting for a long period of time. So 3 and 4 are out. And you said number 2 is wrong so my finally answer is 1.
Explanation:
21 % of oxygen is present in air .
hope it is helpful to you
