Page 2 

 Group III 



11. (a) In what different ways are forests of importance to human welfare ? 



(b) Name the most important enemies of forests. 



(c) Outline a plan by which forests may be conserved. 



12. Explain the method by which an improved variety of plant or animal could 



be originated. 



13. State different ways in which insects are beneficial to man. 



14. (a) Criticize the following luncheon for a high-school pupil, giving scientific 



reasons for your answer: bread and butter; mashed potatoes; tapioca 

 pudding; candy. 



(b) What changes, if any, would you make in the above ? 



(c) Give the particular use to the body of each nutrient found in the revised 



menu. 



15. Discuss the relations of the following birds to man: bobwhite, crow, robin, 



Enghsh sparrow, owl. 



u 



