In the above activity, what will happen if you lift one of the tubes to some height?

Answer the following questions:Make two sufficiently long, identical tubes out of a cardboard. Arrange them on a table, in front of a wall as shown in figure . Place a clock near the end of one of the tubes and try to hear the ticking of the clock at the end of the other tube by placing your ear there. Adjust the angles of the two tubes till you can hear the sound very clearly Measure the angle of incidence theta_1 and the angle of reflection theta_2 . Try to see if they are related in any way. In the experiment, what will happen if you lift one of the tubes to some height?

What will happen if one animal in the food chain goes extinct?

What will happen if respiration take place in one single step?

A open U- tube contains mercury. When 11.2 cm of water is poured into one of the arms of the tube, to how much height does the mercury rise in the other arm from its initial level?

What would happen if no food were grown during one whole year?

Answer the following : What will happen if only one crop is grown repeatedly in the soil ?

Studt the activity and answer the following questions: In the three actions above, what is the relationship between the applied force and the displacement

Study the following experimental set-up and answer the following questions. What will happen if copper sulphate solution in test tube A is replaced by magnesium nitrate solution?

At least a small quantity of garbage or waste is produced every day in each house. What will happen if you keep this garbage for many days in your house?