Waec Agricultural Science 2013 Past Questions and Answers

Question 16:

• WAEC 2013

Which of the following practices leads to land degradation in the savanna zones of West Africa? l. Constant annual bushfire ll. Overgrazing of grassland lll. Application of cattle manure. IV. Cutting of woody species for fuel wood

A. L,ll and lll only
B. L, ll and lV only
C. Ll, lll, and IV only
D. L, ll, lll and lV

Question 17:

• WAEC 2013

a 100kg NPK 15: 15: 15 compound fertilizer has a filler make -up weight of

A. 30kg
B. 40kg
C. 45kg
D. 55kg

Question 18:

• WAEC 2013

One of the main disadvantages of mechanical tillage is the

A. Low intial cost of equipment
B. Need for special training before machines can be used
C. Use of heavy equipment leading to soil compaction
D. Use of foreign exchange to purchase machine parts

Question 19:

• WAEC 2013

Which of the following factors affect the work rate of draught animals? l. Feed intake ll. Breed of animal III. Harness for hitching. IV. Height of animal

A. L, ll and lll only
B. L, ll and IV only
C. Ll, lll and IV only
D. L, ll, lll and IV

Question 20:

• WAEC 2013

Which of the following features could lead to wrong reading on a prismatic compass?

A. A BIG TREE
B. WIND DIRECTION
C. A POND
D. MAGNETIC ATTRACTION