The reason that Columbus sailed the sea was.
<span>B. He wanted to prove that the world was round</span>
The four types of economic assumptions that can negatively affect the environment are:
1. N<span>atural resources and human resources are infinite
2. It g</span><span>rants an event in the future less value than one in the present; short-term costs and benefits are granted more importance than longterm costs and benefits.
3. A</span>ll costs and benefits associated with an exchange of goods or services are borne by individuals engaging directly in the transaction (<span>buyer and seller alone).
</span>4. E<span>conomic growth is required to keep employment high and maintain social order.</span>
The correct answer is B.
IPM (Integrated Pest Management) is a mechanism which aims to practice the economically viable control of pests. It consists on implementing the adequate measures to prevent the proliferation of pest populations, but keeping pesticides at the lowest level, provided that they do not constitute a threat to human health, or a minium one, and only if their application is justified by economic interests.
IPM was implemented in Indonesia in 1986, by prohibiting the use of 57 pesticides in rice crops and cancelling the subsidies for pesticides (about US$120 million a year). Also, the intention was to limit the resurgence of BPH (the main pest in rice crops), as it was becoming resistent after an excessive use of pesticides in Indonesia. The yields were intensively decreasing due to the spread of that pest.
