What is the cause of astigmatism? the cornea is irregular. the cornea is opaque. the eyeball is shortened. the eyeball is elongated.

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

Me with this and you will be marked brainliest

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this