Please answer question 3.5 and question 4

3.5 Discuss three types of non-tariff barriers [except import quotas) used by countries to restrict Imports of agricultural goods. [6) guzmou 4 [1o MARKS] 4.1 It is believed that the green revolution methods are no longer successful because of their impact. List and explain TWO main challenges of green revolution. (4) 4.2 How can an urban industrial economyr contribute to rapid development of the agriculture sector in Namibia? (2) 4.3 Briey outline TWO major contribution of the agriculture sector to the Namibian economy. (2) 4.4 Outline TWO reasons for the existence of cooperatives in Namibia. (2)