Fiber optics has revolutionized communication and helped usher in the information age. Because of the advantages of fiber optics over electrical transmissions via copper cabling, communications costs have plummeted. This has resulted in:

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to