Your answers to questions 17 to 20 must be based on the article below entitled "Looming water crisis simply a management problem":

 Looming water crisis simply a management problem

Source: www.newscientist.com August 20th 2008 (Adapted)

Today´s focus on the credit crisis and rising prices for food and oil has temporarily put another global scarcity in the shade: water. The UN predicts that by 2025, two-thirds of us will experience water shortages, with severe lack of water blighting the lives and livelihoods of 1.8 billion. According to the UN World Water Assessment Programme, by 2050, 7 billion people in 60 countries may have to cope with water scarcity. At this year´s World Economic Forum, UN secretary-general Ban Ki-moon recommended that water scarcity should be at the top of the international agenda. "As the global economy grows, so will its thirst," he said, warning of a future marred by conflicts over water.

There is no doubt that we need to rethink how we use water, especially with the human population growing rapidly, and global warming likely to produce unpredictable patterns of rainfall and drought. Nevertheless, my own research suggests that the situation may not be as dire as many are suggesting. Nations can thrive on surprisingly meagre quantities of fresh water – provided they adopt water-efficient technologies and encourage economic activity that does not guzzle water. I believe the looming water crisis is primarily a problem of distribution and management rather than supply. And we can solve it with existing technologies, increased investment and political will.

In paragraph 1, the author refers to "a future marred by conflicts over water". In other words, a future

Read the dialogue.

Tina: Let’s take a break and have lunch, Monica?

Monica: Not right now. I have to wrap up this paper before lunch.

Guessing the appropriate meaning by using clues from the surrounding context and using a dictionary to get detailed sense of what individual words mean are reading strategies which can be used when:

Mark the alternative where the same rule for the –ING ENDING applies as in “[…] the shift from education to learning […]” (first paragraph):

The reading technique of WORKING OUT THE MEANING OF WORDS OR SENTENCES FROM CONTEXTis known as:

           Rankine notes that adhesion is useful in helping ground stand up in temporary work but plays no part in his design, which is consistent with Coulomb s law. Adhesive or cemented strength may arise as small creep strains occur and as bonds develop in undisturbed sedimentary soils, but any such bonds are, in Rankine s view, destroyed by weathering, and in Coulomb s view destroyed by remoulding. These two founders of soil mechanics are in agreement.

Adaptado de: Andrew N.Schofield Disponível em: http://www2.eng.cam.ac.uk/~ans/habibx.html Acessado em: 13/04/2007.

In Rakine s view, bonds are destroyed

O objetivo do texto IV é:

In "One person could handle an issue that should take two minutes," (lines 14-15), "handle" means "to deal with". Mark the sentence in which the word "handle" is used in the same way.

Segundo o texto,

The alternative that brings the sentences with the same meaning of “My cousin recovered from his health problems because he has completely changed his lifestyle” is

According to Mike Walsh, CEO of LexisNexis U.S. Legal Markets, in Paragraph 5 (lines 38-44),

A afirmação descreve um arranjo experimental composto por um amplificador operacional utilizado como subtrator.

A Package is a single, bound DBRM with optimized access paths. Prior to DB2, the only option available for binding was at the plan level. By using packages, the table access logic is "packaged" at a lower level of granularity, at the Package or program level. According to the text, what is the correct definition of a Package?

According to Silva (Silva, T. 1991) there are at least four central approaches in Second Language writing instruction. These approaches are: