Answer:
a beam of electrons emitted from the cathode of a high-vacuum tube.
Explanation:
any ecosystem is consisted of biotic and abiotic parts. All living organisms like all types of animals and plants etc. and all other parts like soil, water, rocks, etc. are abiotic parts
<span>London dispersion forces
is the weakest intermolecular force. It is a temporary force that happens when
electrons of two adjacent atoms occupy positions that make atoms form dipoles
which are temporary dipoles. This is also referred as dipole-dipole attraction.</span>
