8. Which gas contributes the largest part of air? * O A. Oxygen
O B. Nitrogen
O C. Sulphur dioxise
O D. Carbon dioxide

Nitrogen

Explanation:

Nitrogen present 78% in the earth's atmosphere

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

b) nuclear ive learned that in a pedtrodic table