Answer:
internet of things.
Explanation:
The mention Smart refrigerator with information communication system to both manufacturer as well as the customer is an example of internet of things.
The interconnection via internet of computing devices embedded in everyday objects, enabling them to send and receive data. It is also the ability to transfer data without human to human or computer to human interaction.
Answer: (B). Solar cell B, because it generates more power.
Explanation:
Given that,
For solar cell A
Energy = 100 Joules
Time = 3 minutes = 180 sec
Power of cell A
Power = Energy/Time


For solar cell B
Energy = 200 joules
Time = 5 minutes = 300 sec
Power of cell B
Power = Energy/Time


Hence, Solar cell B, because it generates more power.
D. Physical changes and chemical changes
When it’s about to be dropped
Energy that comes from moving objects or objects that have stored energy is called Motion Energy