RESPIRATORY SYSTEM-CLASS - V

Now answer the following quiz:

1. What is other name of windpipe?

2.Name the gas which we inhale.

3.Which lung is smaller in size-left or right?

4.Why do we have hair in our nose?

5.Do the lungs have any muscles in them?

6.Why do we breathe heavily after running?

7.Name the part in the lungs from where the gaseous exchange takes place.

8.Name the biggest muscle.

THE GREAT BANYAN TREE IN BOTANICAL GARDENS , KOLKATA

Observe the aerial roots of the banyan tree

MANGROVES

Mangroves act as barriers against storms,cyclones and flood destruction.They are found in coastal areas like Goa ,Sunderbans(West Bengal) etc.