Question 6

Hurricanes are typically over 160 kilometers in diameter and can have sustained wind speeds that exceed 200 kilometers per hour.

Hurricanes are significant weather systems that typically span over 160 kilometers, or 100 miles, in diameter. Additionally, these storms can achieve sustained wind speeds that surpass 200 kilometers, or 124 miles, per hour, making them extremely powerful.

A) They are typically over 160 kilometers, or 100 miles, in diameter.

This statement is true as hurricanes are known to cover vast areas, generally measuring more than 160 kilometers in diameter. This characteristic is fundamental to the definition of hurricanes, as their size allows them to impact large regions.

B) They form over cold water in Earth's polar regions and may move toward the equator.

This statement is incorrect. Hurricanes form over warm ocean waters, typically in tropical regions, rather than cold waters in polar areas. The warm water is essential for the energy needed to fuel these storms.

C) They develop quickly and usually last for less than 30 minutes.

This statement is also incorrect. While hurricanes can develop rapidly, they typically last for several days or even weeks, not just 30 minutes. Their longevity is one of the defining features of these powerful storms.

D) They can have sustained wind speeds that are over 200 kilometers, or 124 miles, per hour.

This statement is true. Many hurricanes reach wind speeds that exceed 200 kilometers per hour, categorizing them as extremely dangerous and capable of causing significant destruction.

Conclusion

The correct answers, A and D, accurately reflect the characteristics of hurricanes regarding their size and wind speeds. Options B and C fail to recognize the essential conditions for hurricane formation and their duration, which is critical for understanding these powerful weather phenomena.