Hail is a rain of semi spherical concentrically layered ice balls that are dropped from some thunder...........

Geography World climates

Hail is a rain of semi-spherical, concentrically layered ice balls that are dropped from some thunderstorms. It does heavy damage to agriculture, roofs, and automobiles.

The conditions necessary to form hail during a thunderstorm are

(1) Large thunderstorms with high cloud tops formed from hot moist rising air.

(2) Upper level cold air with a large temperature contrast between the upper level air and the rising moist air.

(3) Strong updrafts within the thunderstorm to keep hailstones suspended in the cloud while layers of ice are added to the stones. When the stones become too large to be suspended by the cloud they fall to the surface as hail.

(4) Thunderstorms that produce hail are more common in the coastal region where temperature contrasts between upper air masses and the rising hot air are greater.

Codes

1, 2 and 3

All of the above

2 and 3

1, 3 and 4

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Explanation:

Hail is a rain of semi-spherical, concentrically layered ice balls that are dropped from some thunderstorms. Hail rarely kills people, but it does heavy damage to agriculture, roofs, and automobiles. The conditions necessary to form hail during a thunderstorm are:

1. Large thunderstorms with high cloud tops formed from hot moist rising air.

2. Upper level cold air with a large temperature contrast between the upper level air and the rising moist air.

3. Strong updrafts within the thunderstorm to keep hailstones suspended in the cloud while layers of ice are added to the stones. When the stones become too large to be suspended by the cloud they fall to the surface as hail.

Although thunderstorms are most common along the Gulf coast, thunderstorms that produce hail are more common in the mid-continent region where temperature contrasts between upper air masses and the rising hot air are greater. Hail can range from pea-size stones to grapefruit size stones.