Agroup of environmentalists were discussing the benefits and drawbacks associated with using fossil fuels. which argument best fits the conversation?

Which description provides the best objective summary of the article in the passage?

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

Which is a kingdom? protistachordataprokarya mammalia