You probably have some strategy about learning new material and studying in general - you built it throughout your school years. But what if it is not very effective and even wrong?
Every new generation thinks more and more about the environment and our planet. We realised that it is our only home and that we have to protect it at all costs.
Everyone has a favorite city where they dream to live in one day. Each city has its own unique qualities, that some people like and others not so much.