Ateaspoon of good farm soil contains up to bacteria in more than 4000 species. soil is the of the earth. soils are they are born, they age, they breathe

1 billion bacteria

Explanation:

A teaspoon of good farm soil contains up to 1 billion bacteria in more than 4,000 species.

ek = (m.v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) v2/2

ek = (200 + 250) 2,32/2 = 450*5,29/2 = 1190,25 j

by: nicholas dooley