Why is Dr. Tumpey's radical approach to "virus engineering" controversial? What are the potential benefits of this approach?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points