Consider a hollow spiral tube, as shown in the diagram. A steel ball is fired into the entrance of the tube in the direction indicated by the green arrow.
Drag the dashed arrow that correctly shows the initial direction of the steel ball as it exits the tube at high velocity or low velocity

it always confuses me when i see it

well we can't tell you because we cant see the time give a screen shot or something.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.