Write an original definition for natural resource, recycling,
renewable resource, and
nonrenewable resource.

Explain how scientists use geologic time to determine the age of landforms.

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

List the substances normally stored in bone tissue