Question 2:

 _________ acts as the life support system of our planet, and is the strong link between our well-being and our sustainable future.

Question 3:

 Main factors responsible for biodiversity loss are ______, ______, _____, ______ and ________.

Question 4:

 Earth has experienced ____ major extinctions, and we are currently experiencing the ____ one.

Question 5:

 It is because of ___________ diversity that no two living things in nature are exactly the same.

Question 6:

Earth is made up of four spheres ____________.

Question 7:

 _______ is necessary for our existence, as it forms the life support system of our planet and its inhabitants

Question 8:

 Sunderbans National park is located in  _________ state of India.

Question 9:

 _________ is the life supporting zone of Earth, where litosphere,atmosphere, and hydrosphere meet and interact.

Question 10:

 ________ and _________ are examples of extinction of species due to their inabilty to adapt to the pressures of the changing environment