Can you tell the direction of the wind by watching the smoke that comes out from the tall chimneys of factories? Open Answer »
A flag mounted on a flag post near the sea coast flutters in the direction of sea. At what time of the day does this happen—at midnight or in the afternoon? Open Answer »
The figure given below shows a diagrammatic representation of trees in the afternoon along a sea coast. State on which side is the sea; A or B? Give reasons for your choice. Open Answer »
A flat in Mumbai with a balcony facing the sea has some clothes hung on a clothes line in the balcony. Towards which direction will the clothes be blown in the afternoon? Explain. Open Answer »
To expel hot air out of the kitchen, ‘A’ has an exhaust fan fitted on the window of her kitchen and ‘B’ has a similar exhaust fan fitted on the wall near the ceiling of her kitchen. Which of the exhaust fan will expel the hot air more effectively? Explain why. Open Answer »
The picture in figure shows tree line along the sea coast on an island near the equator. As shown, the tree tops are permanently bent in one direction. Are the trees bent towards the sea or away from it? Explain. Open Answer »
