Choose the correct alternative from the following : - Assertion (A) : Leaves of plants are green. Reason (R) : Plants contain chromoplasts, the green pigment.
Choose the correct alternative from the following : - Assertion (A) : Water kept in earthen pots gets cooled in summer. Reason (R) : Evaporation causes cooling.
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.
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.