How long does it take for the effects of mechanical
weathering to be noticeable
in rocks?

Wht happens as electrons in the electron transport chain release their energy

Draw the structure of dna nucleotide with adenine as nitrogenous base

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