AP BIOLOGY

Detailed explanation-1: -Gases. The most abundant naturally occurring gas is nitrogen (N2), which makes up about 78% of air.

Detailed explanation-2: -Read a brief summary of this topic nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth’s atmosphere and is a constituent of all living matter.

Detailed explanation-3: -Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System.

Detailed explanation-4: -Earth’s atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.

Detailed explanation-5: -Nitrogen gas is known as azote because on the basis of observation it is seen that nitrogen gas is the part of air which cannot support life.