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Circle the letter of the choice that best completes the statement.

1. Extremely powerful thunderstorms that develop intense, rotating updrafts are
A. downbursts
b. super cells.
c. cumulus cells
d. convection bursts.

2. Electricity caused by the rapid rush of air in a cumulonimbus cloud is
a. thunder.
b. friction.
c. hail.
d. lightning.

3. Violent downdrafts that are concentrated in one local area are
a. downdraft cells.
b. downstrokes
c. downbursts
d. updrafts.

4. Powerful downdrafts that affect an area of less than 3 km are
a. microbursts.
b. macrobursts
c. supercells
d. updrafts.

5. Precipitation in the form of balls or lumps of ice is
a. sleet.
b. Snow.
c. drizzle.
d. hail.

6. The intense updrafts and downdrafts that characterize severe thunderstorms are the
result of
a. unstable air caused by temperature differences between the upper and lower
parts of a storm.
b. the contact between rising air and a layer of stable air.
C. the slowing of the rate of condensation within a cloud.
d. the cooling of the air inside a cumulonimbus cloud to a temperature lower than the
surrounding air.

7. Flooding often occurs if rain falls faster than
A. snow
b. rates of condensation
c. the ground can absorb it
d. clouds can form

8. Hail forms in part because of the presence of
A. supercooled water droplets
b. above- freezing temperatures
c. high-pressure systems
d. melting snow

1 answer

Here are the answers that best complete each statement:

  1. Extremely powerful thunderstorms that develop intense, rotating updrafts are
    b. super cells.

  2. Electricity caused by the rapid rush of air in a cumulonimbus cloud is
    d. lightning.

  3. Violent downdrafts that are concentrated in one local area are
    c. downbursts.

  4. Powerful downdrafts that affect an area of less than 3 km are
    a. microbursts.

  5. Precipitation in the form of balls or lumps of ice is
    d. hail.

  6. The intense updrafts and downdrafts that characterize severe thunderstorms are the result of
    a. unstable air caused by temperature differences between the upper and lower parts of a storm.

  7. Flooding often occurs if rain falls faster than
    c. the ground can absorb it.

  8. Hail forms in part because of the presence of
    a. supercooled water droplets.