Breathing, a non-stop process happening in all living system. Ever wondered how it happens? How many organs are involved? Yes, we all know it is the lungs that help us to breath. But is it only lungs? Does all living organism have lungs? Well, the questions are endless. In humans, it is the lungs along […]

Objects are classified into three types based on the amount of light that can pass through them. They are opaque objects, transparent objects and translucent objects. OPAQUE OBJECTS Objects that do not allow light to pass through them are known as opaque objects. Light rays cannot penetrate through them. This means that one cannot see […]