Everything on this planet are important to human life may be all gone or whatever for me important things, but most importantly, your family and friends.
Everything in this world are important to human life. Possibly groceries or whatever. For me, what matters is many things, but most importantly, family, teachers and friends.
Everything in this world is important to human life. May be pinkish or whatever. For me there are important things, but the most important is family, learning, and friends.