Topic: Food Energy and Respiration Subtopic: Making the air moist, warm and clean
Why is it better to breathe through nose?
Answer: Our nose contains hair that can trap dust particles and germs that are harmful for our health. When we breathe through mouth, there are no hair present within the oral cavity, so there are more chances of germs and dust particles entering the lungs.
- What is affect of wind on transpiration?
- How long it takes to recover from heart transplant?
- How long is digestive tract?
- What is chemical process in digestion?
- What are petals?
- What is egestion?