Aspectrum of a distant object reveals a sequence of known absorption lines that are all shifted to shorter wavelengths. what can be concluded about the object?

It shows that the object is supposedly moving toward the observer

Explanation: A spectrum typically displays intensity and wavelength which characterises light.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.