Statement I : Wind is deflected to the right in northern hemisphere and to the left in southern hemisphere from its normal course. Statement II : Earth rotates from west to east.

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Q: 5 (CDS-II/2010)

Statement I : Wind is deflected to the right in northern hemisphere and to the left in southern hemisphere from its normal course.
Statement II : Earth rotates from west to east.

question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,50,21,50,19,0,2

keywords: 

{'southern hemisphere': [0, 0, 2, 2], 'wind': [1, 0, 1, 2], 'northern hemisphere': [3, 0, 0, 2], 'east': [0, 0, 2, 1], 'west': [11, 4, 16, 22], 'earth': [0, 1, 1, 1]}

Option 1 states that both statements I and II are individually true, and statement II is the correct explanation of statement I.

Statement I states that wind is deflected to the right in the northern hemisphere and to the left in the southern hemisphere from its normal course. This statement is true and is known as the Coriolis effect. The Coriolis effect is caused by the rotation of the Earth.

Statement II states that the Earth rotates from west to east. This statement is also true. The Earth indeed rotates on its axis from west to east, completing one full rotation every 24 hours.

Option 1 correctly states that both statements are true. Furthermore, statement II provides the correct explanation for statement I. The rotation of the Earth causes the Coriolis effect, which in turn leads to the deflection of wind to the right in the northern hemisphere and to the left in the southern hemisphere from its normal course.

Therefore, option 1 is the correct answer.