Keeping water and some food outside can help many living beings, it also makes you a better human being. According to the constitution of India, it is the fundamental duty of every citizen of India “to protect and improve the natural environment including forests, lakes, rivers and wild life, and to have compassion for living creatures”. By ensuring the survival of all the non human living beings, we ensure our own survival. You may have studied about the food chain at some point in your life. If some of the creatures were to disappear from the food chain in your local area, then the ecosystem will be out of balance, which will become uninhabitable for humans since it will lead to spread of various illnesses.