With the help of bacteria in the soil, what nitrogen compound must atmospheric Nitrogen (N2) be converted into before it can be taken in (assimilated) by plants?

Atmospheric Nitrogen (N2)
Ammonium compounds (NH4)
Nitrites (NO2)
Nitrates (NO3)

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

How does the diagram explain ocean currents? earth tilt 23.5 degreesquestion 1 options: earth's tilt causes uneven heating of earth which causes currents.earth's tilt causes the ocean to move because of gravity.earth's tilt and its rotation cause currents.earth's tilt causes uneven distribution of salt which causes currents.

Which are reasons cells undergo cell division?