Exposure assessment refers to the question of

What economic effects might result from the depletion of groundwater supplies from the ogallala aquifer? need to know asap

Avirus consisting of a single strand of rna, which is transcribed into complementary dna, is a ) proteaseb) retrovirusc) rna replicase virusd) nonenveloped virus

(i think the answer is either b or d can someone me? i’ll mark you brainliest) signs tell you what you can or can't do, and what you must do. a. regulatory b. warning c. guide d. construction