1. ammonification
2. assimilation
3. denitrification
process by which green plants
convert carbon dioxide, water, and
energy from the sun into sugars
process by which certain bacteria in
the soil convert nitrogen gas into
ammonia and ammonium
process by which certain bacteria
convert organic nitrogen into ammonia
and ammonium salts during
decomposition
process by which living cells
produce usable energy from food
process by which certain bacteria
convert ammonium into nitrates
process by which certain bacteria
convert nitrates into nitrogen gas
process by which plants or animals
convert nutrients into usable organic
compounds, such as proteins
4. nitrification
5. nitrogen fixation
6. photosynthesis
7. respiration

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

thinking it would be d not too sure but i think it's right

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.