Which phrase best describes the salinity of ocean water? a)number of grams of dissolved chlorine in one kilogram of water

b)number of grams of mineral salt in one liter of water

c)number of milligrams of dissolved sodium chloride in one liter of water

d)number of grams of salt in one kilogram of water

What are the genotypic and phenotypic ratios

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.