Science - Combined - 0653 CIE

Air Quality And Climate Continued

Muhtasari

The air carries the signs of how we power our world: carbon dioxide that warms the climate, sulfur dioxide and oxides of nitrogen that turn rain acidic. Chemistry not only explains how these pollutants form, it also supplies the solutions, from catalytic converters to low-sulfur fuels and the trees that draw carbon dioxide back out of the air.

In this lesson you will learn the strategies that reduce climate change and acid rain, see how oxides of nitrogen form in car engines and how catalytic converters remove them, and study photosynthesis as the natural reaction that converts carbon dioxide and water into glucose and oxygen.

Malengo

  1. [Core] State the adverse effect of these air pollutants, limited to: (a) carbon dioxide: higher levels of carbon dioxide leading to increased global warming, which leads to climate change (b) carbon monoxide: toxic gas (c) particulates: increased risk of respiratory problems and cancer (d) methane: higher levels of methane leading to increased global warming, which leads to climate change (e) oxides of nitrogen: acid rain and respiratory problems (f) sulfur dioxide: acid rain
  2. [Supplement] State and explain strategies to reduce the effects of climate change: (a) planting trees (b) reduction in livestock farming, (c) decreasing use of fossil fuels (d) increasing use of renewable energy, e.g. wind, solar
  3. [Supplement] State strategies to reduce the effects of acid rain: reducing emissions of sulfur dioxide by using low-sulfur fuels
  4. [Supplement] Describe how the greenhouse gases carbon dioxide and methane cause global warming, limited to: (a) the absorption, reflection and emission of thermal energy (b) reducing thermal energy loss to space

Maelezo ya Somo

Climate change and acid rain are among the biggest challenges of our time, and both are chemistry problems at heart. Knowing how the pollutants form and how they can be reduced lets you understand the real choices societies face, and these strategies are regularly examined.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Air Quality And Climate Continued. 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.

  1. Which gas, released by burning fossil fuels, is a main cause of acid rain? A. carbon dioxide B. sulfur dioxide C. oxygen D. methane Answer: B
  2. Oxides of nitrogen form in a car engine because: A. nitrogen reacts with water B. the high temperature makes nitrogen and oxygen react C. petrol contains nitrogen D. the catalyst makes them Answer: B
  3. The products of the reaction 2CO + 2NO -> in a catalytic converter are: A. carbon and nitrogen B. carbon dioxide and oxygen C. carbon dioxide and nitrogen D. carbon monoxide and nitrogen Answer: C
  4. Which strategy helps reduce climate change? A. burning more coal B. planting trees C. cutting down forests D. using more petrol Answer: B
  5. Photosynthesis requires carbon dioxide, water, light and: A. nitrogen B. chlorophyll C. sulfur D. a catalytic converter Answer: B

Inapatikana kwenye programu ya Green Bridge

Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Inapatikana kwenye programu ya Green Bridge

Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Fanya Mazoezi ya Maswali ya Majaribio

Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Air Quality And Climate Continued? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.

Pakua Programu Kwenye Google Playstore

Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.

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Msaada Nje ya Mtandao - Jifunze Wakati Wowote, Popote Pale
Ratiba ya Daraja la Kijani
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Fuata Utendaji na Maendeleo Yako
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