Should scientist conduct research that could lead to harm as well as good?

Read the excerpt from "the blackfeet creation." how do readers know that this excerpt is from a myth? the excerpt describes an animal called a muskrat. the excerpt describes old man drying the mud. the excerpt describes old man scattering mud over water. the excerpt describes how muskrat create land.

Which verb from is used to indicate the perfect progressive tense

What is the definition of scathing? a. to assail with abusive language c. to deter by advice or persuasion b. bitterly severe, as a remark d. the west wind; a mild wind