Which among the following object will require a greater force to move?

refrigerator          desk           television         teacher’s table

Which among the objects below require lesser force to move?

book         notebook            pencil       blackboard eraser

Upon application of force, which of the following objects will move faster?

a. wooden chair     b. refrigerator        c. table         d. ball

The following are examples of surface water except one, what is it?

river  lakes    falls     tears

Which among these contain plenty of salt?

seawater     freshwater    ground water    rainwater