apes quiz chapter 5
which of the following shows the approximate concentration of CO2, N2, and O2 in dry air?
1% carbon dioxide, 78% nitrogen, 21% oxygen
which of the following best illustrates an abiotic component of the environment affecting a biotic component of the environment?
low phosphorus content in soil limits the growth of vegetation
what is the process called when ammonia is converted to nitrite, then to nitrate
nitrification
the most abundant gas in Earth's atmosphere is
nitrogen
nitrification occurs in which of the following steps?
step 3 (nitrite -> nitrate)
a tropical cyclone forms as:
strong winds pick up moisture over warm waters
the process in the hydrologic cycle in which water vapor is released from leaves into the atmosphere is called
transpiration
which is the following natural events would be most likely to contribute to the cooling of Earth's atmosphere?
volcanism
subduction occurs:
when one tectonic plate descends below another