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