A major constituent of Earths atmosphere is nitrogen gas N2

A major constituent of Earth\'s atmosphere is nitrogen gas (N_2), which makes up 79% of the air we breathe. Primary producers such as plants and cannot this form of nitrogen into biomolecules. Instead they rely on bacteria Archaea to convert N_2 to amminia (NH_3). This important biological reaction is called: nitrogen fixation. Nitrification.

Solution

The answer is NITROGEN FIXATION.

\"Nitrogen fixation is a process by which NITROGEN is converted into AMMONIA. \"