Answer:
Oxygen and nitrogen
Explanation:
Oxygen and nitrogen are very electronegative than any other element in the periodic table hence they have more tendency to attract an electron towards itself
Answer: Life span, Life expectancy.
Explanation:
Carbon dioxide is transported in the blood in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Source: https://academic.oup.com/bjaed/article/5/6/207/331369
James B. Connolly of Massachusetts was the first modern Olympic champion to be rewarded with a silver medal. He represented the Suffolk Athletic Club