Sleep could be best described as a __________. a. car with the engine started, but parked and idling b. truck driving on the fre
eway in the right lane c. train with cargo being loaded at the start of a trip d. bicycle riding uphill in the wind please select the best answer from the choices provided a b c d
Salinity refers to the principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater. It is the measure of all the salts dissolved in water. It is usually measured in parts per thousand.
