Choose the correct alternative from the following : - Assertion (A) : Leaves of plants are green.
Reason (R) : Plants contain chromoplasts, the green pigment.

C. A IS TRUE BUT R IS FALSE.

Choose the correct alternative from the following : - Assertion (A) : Water kept in earthen pots gets cooled in summer.
Reason (R) : Evaporation causes cooling.

A. BOTH A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A.

Choose the correct alternative from the following : - Assertion (A) : Goitre is a common disease in mountainous regions.
Reason (R) : The diet of the people in mountains lacks iodine content.

A. BOTH A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A.

Choose the correct alternative from the following : - Assertion (A) : Unpolished rice should be eaten.
Reason (R) : Polished rice lacks Vitamin B.

A. BOTH A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A.

Choose the correct alternative from the following : - Assertion (A) : Mohammad-bin-Tughluq is called the 'wisest fool'.
Reason (R) : He had wise plans but implemented them foolishly.

A. BOTH A AND R ARE TRUE AND R IS THE CORRECT EXPLANATION OF A.