Question

Which device will be suitable for understanding the concept of day and night on the earth?

Answer 1

The device which will be suitable for understanding the concept of day and night on the earth is a globe. The earth is round and it revolves around the sun as well as it revolves around itself.

Now, a simple experiment can be done by taking a globe as a model of earth and a torch light as a source of light or the sun. The sunlight will only light up some part of the globe or the earth that is in front of earth, the other part will be dark.

That is how you will be explain the concept of day and night in different parts of the world. 

Answer 2

Explanation:

Your answer is a Globe

I hope it will help you