Question:

How to use the different types of simple machines to your advantage?

• Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever

Question:

Will it really serve good to mankind in the future?

• It's important to visualise a favourable future instead of focussing on circumstances that annoy you. Many people act impulsively without giving any thought to what they really want. People spend more time than necessary observing what is wrong in their life instead of imagining what their ideal future could be

Explanation:

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