RUA-Test

11. Which of the following statements concerning the operation of catalytic converters are correct?

• The inclusion of catcons on diesel engines is prohibited by law.  

• Carbon and other engine deposits impede their efficient operation.  

• Inappropriate use in mining equipment, trucks and buses renders them ineffective.  

• They convert toxic substances to less harmful substances which are emitted from engines.  

• The use of converters intended for use on petrol engines on diesel engines is a common problem. 

Today, the Sahara is one of the Earth’s largest deserts. However, 10,000 years ago the 12.___________ was very different.

The air was not as dry as it is today, and there were several large 13.___________ and lakes.

One of these was located near a 14. __________ which was therefore an ideal home for early humans.

Fish from these lakes was used as food by the people who lived there. We know this because a large quantity of fish 15.__________ was found at the site.

So, thinking a little bit more about how people 16. _______________their way in the world, we can also talk about world views such as consumerism or materialism.

And these are generally part of the assumed 17._______________ of our lives.

They’re part of the normal, and we don’t talk about them so much, but we could consider that we might agree or disagree to different extents with the idea of consumerism, an ideology that encourages the ongoing 18._______________ of goods and services.

That is to say, the good life is made up of consuming more and more. You could agree with that to a certain extent or not. Materialism, highly related, is a 19. _______________ system where social status, whether people are high or low status, ...

in some sense whether they’re good compared to other people, is determined by wealth, by 20._______________ , and ownership, and consumption of goods and services.