(a) (i) What is pollution?

(ii) State four pollutants of water

(b) Describe the effects of each of the pollutants named on aquatic organisms.

 (a) (i) List five birth control methods.

(ii) State five reasons why family planning is important to a nation.

(b) Make a drawing 8 to 10 cm long of the reproductive system of a human female and label fully.
 

(a) Describe the characteristic features of the vegetation of the tropical rain forest.

(b) Name two types of savanna found in Nigeria giving one example in each case of a town where they occur.

(c) Describe briefly three ways each by which animals in arid habitats are adapted to: (i) drought; (ii) high temperatures [5 marks] 
 

(a)(i) List the functions of a typical foliage leaf.

(ii) Name three types of leaf modifications giving one example in each case.

(b) Make a diagram 8 - 10cm long, of the female reproductive part of a flowering plant and label fully.

(c) Name three plants that are pollinated by insects.
 

(a(i) Describe three features of a typical vertebra.

(ii) Name three types of skeletons found in animals, and in each case name one animal which possesses it.

(b)(i) State four functions of the mammalian skeleton.

(ii) Name three types of skeletons found in animals, and in each case name one animal which possesses it.