Most scientists in Wegener’s day rejected his hypothesis on continental drift because he could not explain .

The process by which natural forces move weathered rock and soil brim one place to another is called

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

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