How is cyclone formed? Explain with the help of a diagram.

A super cyclone moved in from the Bay of Bengal to hit the coastal Odisha on ${29}^{\mathrm{th}} \mathrm{October} 1999$. This super cyclone with a wind speed of over $250 \mathrm{km}/\mathrm{h}$ has left $1.5 \mathrm{million}$ people homeless and the death toll is believed to be as high as $1,00,000$.

What precaution the government and people should have taken to reduce the loss that has occurred?  

Solve the given crossword.
Across:
1. Another name for cyclone. 
2. A funnel-shaped violent storm.
3. A very strong and high- speed wind.
4. A light and cool wind.
Down:
5. The sound produced during lightning.
6. The storm over low-pressure area.
7. The instrument used to measure wind speed.

“Note: This question given in the book seems to have errors and the modified question should be as given below.”

Solve the given crossword.
Across:
1. Another name for cyclone. 
2. A funnel-shaped violent storm.
3. A very strong and high- speed wind.
4. A light and cool wind.
Down:
5. The sound produced during lightning.
6. The storm over low-pressure area.
7. The instrument used to measure wind direction.