Which of these actions is a sustainable practice? a. exceeding fossil fuel emissions targets b. buying extra carbon credits on the carbon market c. selling locally caught fish in a local market d. expanding the amount of fossil fuels extracted from an area

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