Spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits or revolves around the Sun. This movement is called a revolution.
answered: Guest
Ifound this on google “your outer ear collects sound waves and reflects them into a tiny tube called the ear canal. at the end of the ear canal is a thin, skin-like membrane stretched tightly over the opening, called the eardrum.” i hope this you for what your looking for
answered: Guest
absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.
emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.