25 .The word "motion in line 5 is closest in meaning to
    (A) wind
    (B) change
    (C) movement
    (D) humidity
    26.Ice crystals do NOT immediately fall to Earth because
    (A) they are kept aloft by air currents.
    (B) they combine with other chemicals in the atmosphere
    (C) most of them evaporate
    (D) their electrical charges draw them away from the earth
    27. The word "random" in line 7 is closest in meaning to
    (A) unpredictable
    (B) perplexing
    (C) independent
    (D) abnormal
    28.What can be inferred about drops of water larger than 0.008 inch in diameter?
    (A) They never occur.
    (B) They are not affected by the force of gravity.
    (C) In still air they would fall to earth.
    (D) In moving air they fall at a speed of thirty -two miles per hour.
    29 How much bigger is a rain drop than a cloud droplet ?
    (A) 200 times bigger
    (B) 1,000 times bigger
    (C) 100,000 times bigger
    (D) l,000,000 times bigger
    30. In this passage, what does the term "coalescence" refer to
    (A) The gathering of small clouds to form larger clouds
    (B) The growth of droplets
    (C) The effect of gravity on precipitation
    (D) The movement of dust particles in the sunlight