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Chemistry

12th Grade

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Os problemas relacionados ao meio ambiente são muito antigos, entretanto, à medida que a população cresceu e a economia se industrializou, esses problemas aumentaram muito. Um dos problemas ambientais observados nos mostra a intensificação do aquecimento da Terra, ou seja, a elevação da temperatura terrestre em função da presença em excesso de certos gases, principalmente o dióxido de carbono (gás carbônico), na atmosfera. Esses gases permitem que a luz solar atinja a superfície terrestre, mas bloqueiam e enviam de volta parte da radiação infravermelha (calor) irradiada pela Terra. Os fatos relatados descrevem o fenômeno conhecido como

El Niño.

buraco na camada de ozônio.

chuva ácida.

inversão térmica.

efeito estufa.

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

A intervenção humana pode estar relacionada às mudanças observadas na cobertura de gelo da Groenlândia devido a:

Emissão de gases de efeito estufa que aumentam o aquecimento global.

Aumento da atividade sísmica natural na região.

Redução da radiação solar recebida pela Terra.

Movimentação das placas tectônicas sob a Groenlândia.

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The images represent the glaciers of Greenland, which have suffered and are suffering impacts resulting from:

heat island.

acid rain.

wind erosion.

thermal inversion.

global warming.

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Among the various benefits achieved with Reverse Logistics, despite the costs of structuring the process, we can mention:

Protection of the environment.

Reduction of the costs of returning materials to the production cycle.

Improvement of the company's image in the market.

Significant increase in company profits.

All alternatives are correct.

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Which of the alternatives best defines the concept of reverse logistics?

The practice of replacing recyclable materials with new products in the production process.

The set of actions aimed at the transport and storage of goods to the final consumer.

The return of products or post-consumer waste to the production sector, for reuse, recycling, or environmentally appropriate disposal.

The creation of laws that prohibit the production of solid waste in industries and commerce.

Selective collection carried out by urban cleaning services in city neighborhoods.

6.

MULTIPLE SELECT QUESTION

30 sec • 5 pts

Analyze the statements about the characteristics of petroleum and mark (T) for true and (F) for false.

Petroleum is a renewable energy source, and its use is not harmful to the environment.

The formation of petroleum occurs over millions of years, being a process of alteration of plant or animal organic matter.

Main energy source of the First Industrial Revolution (18th century), petroleum had its use reduced in later centuries.

Among the various uses of petroleum are the production of fuels (gasoline and diesel), as well as products such as plastic.

The largest known oil reserves are located in Middle Eastern countries.

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Petroleum is widely used as an energy source, but it also has several industrial uses. One of these uses is:

manufacture of plastics.

making paper.

production of organics.

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