Contoh Explanation Text Tentang Fenomena Alam dan Bencana Alam Singkat beserta Strukturnya

Sudah tahu explanation text tentang fenomena alam dan bencana alam singkat beserta strukturnya? Simak contohnya berikut ini.

13 Februari 2023 Lailla

Conclusion

Jadi misteri aurora saat ini tidak lagi misterius seperti dulu. Namun orang masih melakukan perjalanan ribuan mil untuk melihat pertunjukan cahaya alami yang cemerlang di atmosfer bumi. Dan meskipun kita mengetahui alasan ilmiah terjadinya aurora, pertunjukan cahaya alami yang mempesona tetap dapat memicu imajinasi kita untuk memvisualisasikan jembatan api, dewa atau hantu yang menari.

Referensi:

https://www.asc-csa.gc.ca/eng/astronomy/northern-lights/what-are-northern-lights.asp
https://earthsky.org/sun/what-causes-the-aurora-borealis-or-northern-lights/

Contoh Explanation Text Tentang Bencana Alam: Tornado

General Statement

Tornadoes are vertical funnels of rapidly spinning air. Their winds may top 250 miles an hour and can clear a pathway a mile wide and 50 miles long. Also known as twisters, tornadoes are born in thunderstorms and are often accompanied by hail. Giant, persistent thunderstorms called supercells spawn the most destructive tornadoes. Tornadoes only form when a thunderstorm has a particular combination of winds.

Explanation

Air rising in a thunderstorm can begin to spin when it is affected by winds blowing it in different directions. It starts to rise and is pushed to the side by the wind. It rises a bit more and is jostled again by wind moving in another direction. Winds moving in different speeds and directions at different altitudes cause the rising air to start spinning.

Air that spins as it rises is typical in a supercell, the strongest type of thunderstorm, but not all spinning air creates a tornado.

For a tornado to form, there also needs to be spinning air near the ground. This happens when air in the storm sinks to the ground and spreads out across it in gusts. Gusts of warmer air rise and gusts of cooler air sink as they blow across the land. If there are enough rising and sinking gusts, the air near the ground starts spinning.

The spinning air near the ground speeds up as it is drawn inward toward its axis of rotation. This happens in the same way that figure skaters spin faster when their arms are drawn in rather than when their arms are outstretched. This is called conservation of angular momentum.

The rotating air moves horizontally across the ground, and can be tilted vertically by the force of the rising, rotating air. This allows a tornado to form.

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