Which of the following accurately describes the ph scale?

a. the lower the ph is, the more basic the solution is.
b. the lower the concentration of hydrogen ions, the higher the acidity is.
c. the greater the concentration of hydroxide ions, the higher the acidity is.
d. the greater the ph is, the lower the acidity is.

Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts

What field of science did harry hess study?

What did hunter gathers do to alter the environment?