Fracking is a way to obtain oil and natural gas trapped in rock. During fracking, a mixture of water, sand, and chemicals are forced into the rock,
causing it to fracture and release the natural gas or oil it contains. Fracking
can harm the environment when it releases water pollution or air pollution
How could scientists best cooperate to use scientific research to prevent this
problem?

A. They could reduce their use of fossil fuels to decrease the demand for fracking.

B. They could avoid fracking when they are studying the environment

C. They could agree to use only fossil fuels from sources other than fracking.

D. They could develop technologies that help prevent the release of pollutants while fracking.

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

Buuy which of the following did you include in your response? organs perform specific functions in the body to keep it alive. organelles perform specific functions in cells to keep them alive. done

Arepair man charged $93.06 the price included 2 hours of labor and 40 service charge how much does the repairmen charge per hour for labor?