Exam 3: The Aquatic Environment

The ________ of water is the amount of heat that is required to raise the temperature of water one degree Celsius.

A solution with a pH of 3

Concentrations of solutes are greatest in

Aquifers,like the High Plains Ogallala aquifer,provide a limitless supply of water.

The depth of a thermocline is directly influenced by all the following factors,except

A liquid that is a homogeneous mixture of two or more substances is called a ________.

The upper layer of warm,low-density water of an open body of water is called the ________.

The solubility of oxygen ________ as water warms.

In lakes and ponds of temperate latitudes,the upper and bottom layers of water usually turn over as water warms up during spring.

The total amount of evaporating water from the surfaces of the ground and vegetation is called ________.

________ is the source of frictional resistance to objects moving through water.

Aluminum is toxic to many aquatic species.

A scientist measures the temperature of a lake at various depths and finds very little variation between temperatures at the surface and at the bottom of the lake.The temperature measurements were most likely taken in a

The density of seawater increases when

Cold water contains more oxygen than warm water.

Tides are strongest when the

The thermocline is permanent in tropical bodies of water and seasonal in temperate bodies of water.

The evaporation of water from internal surfaces of leaves,stems,and other living parts of a plant is called

The rotation of Earth on its axis is the driving force behind the water cycle.

The primary ions that contribute to the salinity of ocean waters are