Diesel Exhaust Fluid (DEF) consumption is measured as a ratio of diesel fuel use, normally termed the dosing rate or treat rate. Medium-and heavy-duty vehicles have a dosing rate of 2-3%.EF is sprayed into the exhaust stream of diesel vehicles to break down dangerous NOx emissions into harmless nitrogen and water. This system is called Selective Catalytic Reduction (SCR) and can be found on 2010 and later model year trucks and many diesel pickups and SUVs.
The layer of the atmosphere where weather occurs is the Thermosphere (True) The Mesosphere is the layer of the atmosphere that contains ozone (False) The exosphere is the outer layer of the thermosphere (I don't know sorry :) Most meteoroids burn up in the stratosphere (True) The tropophere is divided into the inospere and the exosphere (don't know)
The next and last layer of the atmosphere is the Thermosphere. This layer begins just above the mesopause at a height of about 80 kilometers.The Thermosphere has no real upper limit, rather, it extends out into space to the magnetosphere, which is not part of the atmosphere.his layer begins just above the mesopause at a height of about 80 kilometers. The Thermosphere has no real upper limit, rather, it extends out into space to the magnetosphere, which is not part of the atmosphere.