Question

7. Which of the following is bio-degradable?
a) Water bottle
b) science book
c) diamond ring
d) window grill
8. Cotyledon in betel nut are-
a) One
b) two
c) many
d) none
9. Chambered heart is present in the class-
a) Amphibia
b) Mammalia
c) Reptil
d) Aves
10. Which mosquito can cause malaria disease?
a) Anopheles
b) Culex
c)Female anopheles
d) Aedes
11. What is the shape of the bee hive cells?
a) Hexagonal
b) Round.
c) Triangle
d)Elongated​

Answer 1

Answer:

b) science book

Explanation:

Answer 2

Answer:

(science book)

Explanation:

because pages are made of tree. a natural thing . anyways so window grill and etc is not rot buried in ground