Basic Needs

Human beings and animals need food, water, air and shelter.

Air

1. Air is needed for breathing.
2. Oxygen from the air enters the body to help us generate energy.

Food

1. The food that human beings eat does not only provide energy, but also helps to build and replace cells and tissues to keep us healthy.
2. Food is also needed by human beings and animals for growth and movement.

Water

1. Water is needed to dissolve digested food, gas from respiration and products of excretion.
2. Water is also important to maintain our body temperature.