The salt balance in the ocean is maintained by the addition of salts in river discharge.Question 43Select one:TrueFalse

Freshwater runoff in rivers from  land is a major source of dissolved salts to the sea.Question 31Select one:TrueFalse

Earth’s waterways depend on a phenomenon known as the salt cycle as a key determinant of ecological health, with even freshwater rivers and lakes exhibiting naturally occurring salt concentrations that can fluctuate over time. Unfortunately, recent industrial activity has yielded an overly salty salt cycle. This problem is a particular focus of University of Maryland geologist Sujay Kaushal, who is alert to the scope and significance of cycle irregularities: salt imbalances affect an urban “drinking water supply” and extend beyond common sodium chloride (or table salt) ions to include “calcium, magnesium, potassium, and sulfate ions.”8Mark for ReviewCross out answer choices you think are wrong.ABCWhich choice best describes the function of the underlined portion of the text?AIt provides testimony from Kaushal in order to underscore the severity of salt cycle disruptions.BIt cites multiple perspectives while primarily illustrating the thoroughness of Kaushal’s salt cycle research.CIt specifies a series of preconceptions that Kaushal has confronted and refuted in the course of investigating the current salt cycle.DIt emphasizes Kaushal’s academic background in order to lend credibility to recent concerns about the course of the salt cycle.

In saltwater, the water that surrounds a fish has a higher concentration of dissolved salts than is found in the fish's body cells. Which two methods allow the fish to maintain water balance?A.Releasing large amounts of water in urineB.Pumping out salt through the gillsC.Drinking large amounts of waterD.Absorbing water into the body by osmosisSUBMITarrow_backPREVIOUS

Along a coast, a drowned river valley that receives input of both fresh water and salt water is called:Question 36Select one:an estuarya longshore currenta fjorda berm

High salinity seawater _______Group of answer choiceshas more ionsconducts more electricityall these are truelets higher currents pass throughhas more charged particles