Why scientists share information with one another

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d