The answer is 2.29 as the average velocity.
Dust in the atmosphere represents suspension. It is collaborating shaped during colliding and collapsing of the interstellar mediums this is influenced by the gravitational attraction of the atoms and particles in the entitles. Hence, there are three types of nebular namely, are classical nebula, diffuse nebula, planetary nebular and supernova remnants.
Answer:
4. p.complement system c.saliva b.sneezing
A characteristic classified as a special impact
