Deficiency is like when you’re playing with a box of crayons and you notice that some colors are missing. Let’s say you want to draw a rainbow, but the red crayon is not there. You can’t make the rainbow complete because something important is missing. In the same way, when something is deficient, it means something important is missing or not enough.

Think of a garden that needs water to grow. If there isn’t enough water, the plants can’t grow big and strong. This is called a water deficiency. Just like how your body needs food, water, and sleep to stay healthy, plants need certain things to grow too. When they don’t get enough, they have a deficiency.

Imagine you’re building a tower with blocks, and you don’t have enough blocks to make it as tall as you want. This is a bit like a deficiency because you don’t have enough of what you need to finish the tower. So, deficiency is all about not having enough of something important, whether it’s crayons, water, or blocks.