Is the Earth in danger? v-1

Refer disasters to their descriptions.

… is one of the names of cyclonic storm that forms over the oceans. 

   It is caused by evaporated water that comes from the ocean. 

   Typhoon is another name for it. 

… are rain drops that have formed together into ice.

… are the result of prolonged rainfall from a storm, rapid melting of  large amounts of snow, or rivers which rise up their levels of water.

… is a slide of a large snow (or rock) mass down a mountainside. It is 

   one of the major dangers faced in the mountains in winter. 

… is a severe winter storm condition characterized by low 

   temperatures, strong winds, and heavy blowing snow. 

… is the point in which a volcano is active and releases its power, 

   and the eruptions come in many forms. 

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1. The ... of earthquakes is the heat inside the earth.

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What was the ... for your refusal to go there?

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What is the ... of lightening?

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The pupil said that the ... he didn't go to school was because it was too cold.

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Cigarettes are the biggest ... of lung cancer in young men.

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There is no ... not to help them.

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What was the ... of the car accident on the highway today?

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His ... for staying at home was that he was ill.