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 bronchitis?
- What is job of heart?
- What is job of platelets?
- What is inside heart?
- From where does roots take up oxygen?
- What is absorption?