Which phrase describes the tidal range A. the cause for the rotation of wind in a circular pattern
B. the difference levels of high tide and low tide
C. the water that flows away from the shore and moves sand with it
D. the difference between the times the high tide and low tide come in
PLZ HURRY

What did hunter gathers do to alter the environment?

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

2. which is the last step in the scientific method?