Bantuin Dong!!:)A tornado is “a violently rotating column of air,

Berikut ini adalah pertanyaan dari moteelsa pada mata pelajaran B. inggris untuk jenjang Sekolah Menengah Atas

Bantuin Dong!!:)A tornado is “a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud”. For a vortex to be classified as a tornado, it must be in contact with both the ground and the cloud base. Scientists have not yet created a complete definition of the word; for example, there is disagreement as to whether separate touchdowns of the same funnel constitute separate tornadoes. Tornado refers to the vortex of wind, not the condensation cloud.


A tornado is not necessarily visible; however, the intense low pressure caused by the high, wind speeds (as described by Bernoulli’s principle) and rapid rotation (due to cyclostrophic balance) usually cause water vapor in the air to condense into cloud droplets due to adiabatic cooling. This results in the formation of a visible funnel cloud or condensation funnel.


There is some disagreement over the definition of a funnel cloud and a condensation funnel. According to the Glossary of meteorology, a funnel cloud is any rotating cloud pendant from a cumulus or cumulonimbus, and thus most tornadoes are included under this definition. Among many meteorologist, the ‘funnel cloud’ term is strictly defined as a rotating cloud which is not associated with strong winds at the surface, and condensation funnel is a broad term for any rotating cloud below a cumuliform cloud.


Tornadoes often begin as funnel clouds with no associated strong winds at the surface, and not all funnel clouds evolve into tornadoes. Most tornadoes produce strong winds at the surface while the visible funnel is still above the ground, so it is difficult to discern the difference between a funnel cloud and a tornado from a distance.



Do the Exercises

1.What is the social function of the text above?

2.What are the generic structures of the text?

3.What is the author’s main idea of paragraph four?

4.“….It must be in contact with both the ground and the cloud base.” (Paragraph 1) What does the word “IT” refers to?

5.Find out and write down the Simple present tense sentence (2 sentences)


Jawaban dan Penjelasan

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Jawaban:

1.What is the social function of the text above?

2.What are the generic structures of the text?

3.What is the author’s main idea of paragraph four?

4.“….It must be in contact with both the ground and the cloud base.” (Paragraph 1) What does the word “IT” refers to?

5.Find out and write down the Simple present tense sentence (2 sentences)

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Last Update: Mon, 31 May 21