Takes ammonia and converts it to nitrite ions. 2nd step of nitrogen cycle is called

Nitrification.

Explanation:

Nitrification is the second step of nitrogen cycle in which the ammonia is converted into nitrates with the help of bacteria is called nitrifying bacteria. In the first step, biological nitrogen fixing bacteria fixes atmospheric nitrogen into ammonia. This process is known as ammonification. Due to this fixation, the plants is able to use the nitrogen for making amino acids in the body. So the first step is ammonification and the second step is nitrification.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.