Fracking
Muhtasari
Deep below the surface, locked inside dense shale rock, lie huge reserves of natural gas and oil that ordinary drilling cannot reach. Fracking is the controversial technique that cracks open this rock to release the fuel. It has transformed the energy supply of some countries, yet it is banned in others. Few topics in environmental management divide opinion so sharply, pitting energy security and jobs against fears for water, air and the ground itself.
In this short but important lesson you will learn exactly what fracking is and how it works, from drilling the borehole to pumping in the fracturing fluid of water, sand and chemicals. You will then weigh the benefits and limitations on both sides of the argument, the balanced judgement the exam expects when a topic is this contested.
Malengo
- 1.6.1 Define fracking as the extraction of natural gas or petroleum from shale rock by hydraulic fracturing.
- 1.6.2 Discuss the benefits and limitations of fracking.
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Tathmini ya Somo
Hongera kwa kukamilisha somo la Fracking. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Fracking is used to extract gas and oil from which type of rock? A. Granite B. Marble C. Shale D. Basalt Answer: C
- In the fracking fluid, the purpose of the sand is to: A. Crack open the rock B. Hold the cracks open C. Dissolve the gas D. Cool the drill Answer: B
- Which of the following is an argument in favour of fracking? A. It can trigger earth tremors B. It uses large amounts of water C. It reduces the need to import gas D. It releases toxic chemicals Answer: C
- Which of these is an environmental concern about fracking? A. It creates local jobs B. Toxic chemicals could pollute the water table C. Gas pollutes less than coal D. It improves energy security Answer: B
- The material used to keep cracks in the shale open is called the: A. Overburden B. Aquifer C. Proppant D. Leachate Answer: C
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Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Fracking? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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