Dr. Wagner is investigating a newly discovered, disease causing agent. She determines that one structure in the agent is double-stranded RNA. What kind of
agent is Dr. Wagner studying?
A. virus
B. Protist
C. Fungus
D. Bacterium

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.