Ammonification is carried out mainly by

Which of the following steps of the water cycle require a living organism in order to occur?

liquid falls to the Earth

liquid runs along surface and collects in puddles, lakes, etc...

some water seeps into Earth's surface

sun heats liquid water to vapor and it rises

water as vapor into atmosphere from plants

water condenses to form clouds before precipitation again

A negative impact humans have on the water cycle

a negative impact humans have on the carbon cycle

a negative impact humans have on the nitrogen cycle

plants capture CO2 from the atmosphere and use it to make sugar

CO2 released into atmosphere as waste from metabolism

one organism eats another for carbon

CO2 released into atmosphere from burning

decomposers break down carbon from dead organisms, allowing it to be recycled in the soil

converts carbon from once-living organisms into a fuel source through intense heat and compression

Bacteria in the soil or water convert nitrogen (from the air or water) into forms that plants can use

decomposers like bacteria break dead matter down, returning nitrogen to the soil.

Bacteria convert nitrogen from waste (urine and feces) into ammonia.

–Bacteria convert nitrogen in ammonia into nitrates and nitrites to be absorbed by plants in their roots.

bacteria convert nitrogen in ammonia to N2 so it can go back into the atmosphere