印度是南亚面积最大、人口最多的发展中国家．某学校地理课外兴趣小组开展了一次“为印度经济把脉”活动．读图文材料，完成下列问题．

活动目标：遵循因地制宜的原则，为印度经济发展提出合理化建议．

知识储备：水稻喜高温、多湿、光热较好的平原，适宜的年降水量是700﹣1600毫米；小麦是一种耐寒、耐旱的温带长日照粮食作物，适宜的年降水量是250﹣800毫米．

活动过程：

①与经营者协商和解

②到该店大吵大闹

③向有关行政部门申诉

④请求消费者协会或其他调解组织调解

 如图甲所示，电源电压恒为18V，灯泡L上标有“10V 5W”字样，电流表量程为0～0.6A，电压表量程为0～15V．滑动变阻器R的最大阻值为200Ω，当只闭合S和S₁，移动滑动变阻器的滑片P时，它两端的电压与其接入电路的电阻关系如图乙所示，当滑动变阻器接入电路的阻值由R₁增大到4R₁时，定值电阻R₀的电功率变化了5.4W，求：

    The sun, the moon and the stars are all in the sky. We see the sun in the day. We see the moon and the stars at night. The sun is a ball. It is bigger than the moon. The sun has a family. It is the biggest in the family. The moon is a ball, too. It is much smaller than the sun. It is smaller than the stars. The light on the moon comes from the sun. The stars look smaller than the sun and the moon. But most of the stars are bigger than the sun. They are very far away from us, so they look small. All day the stars are in the sky. But the light from the sun is too bright. We cannot see the stars in the day.