Write the questions for the answers:
A: What is a carbon footprint?

B: It is the amount of greenhouse gases - primarily carbon dioxide released into the atmosphere by human activities.

A: What causes carbon emissions? 

B: The burning of fossil fuels in the environment.

A: How does carbon footprint affect us?

B: Carbon emissions contribute to climate change, which can have for humans and their environment.

A: How can I calculate my carbon footprint?

B: You need to work out your energy use, water use and waste disposal.

A: How can I reduce my carbon footprint?

B: Turn off lights, TVs, computers when you do not need them. Walk or ride your bike instead of using cars. Reduce the amount of trash you create by recycle and reusing items.

VIII. Write the questions for the answers.

1. A: What is a carbon footprint?

B: It is the amount of greenhouse gases - primarily carbon dioxide released into the atmosphere by human activities.

2.A. What causes carbon emissions? 

B. The burning of fossil fuels in the environment.

3. A. How does carbon footprint affect us? 

B. Carbon emissions contribute to climate change, which can have for humans and their environment.

4.A: How can I calculate my carbon footprint?

B: You need to work out your energy use, water use and waste disposal.

5. A: How can I reduce my carbon footprint?

B: Turn off lights, TVs, computers when you do not need them. Walk or ride your bike instead of using cars. Reduce the amount of trash you create by recycle and reusing items

→Natural Gas← viết về cái nè nhé
A natural gas flame
Ervins Strauhmanis, Flickr (link is external)
A gas that is made up mostly of methane and found near other fossil fuels, like coal. Methanogenic processes occurring in landfills and marshes also produce natural gas. Like petroleum, natural gas must first be processed before we can use it as a fuel. It is important to remove most of the other components of natural gas until it is almost purely methane. When combusted, natural gas produces only about half the greenhouse gas emissions as coal does, making it a popular fossil fuel in our increasingly carbon-conscious society. Take a look at these oil- and gas-related maps (link is external) to learn more about natural gas production and reserves in the United States.

 1. what / a / carbon / is / footprint

→ What is a carbon footprint ?

 2. oil / is / why / energy / source / non-renewable / a

→ Why is oil a non-renewable source energy ?

 3. should / we / why / energy / save ?

→ Why should we save energy ?

 4. the countryside / a big city. / has / fewer problems / than

→ The countryside has fewer problems than a big city .

mình không chắc chắn lắm đâu vì phần sắp xếp câu mình còn rất yếu. :>

XV. Read the passage and answer the question.

A carbon footprint is the amount of carbon dioxide (CO2) released into the air by your own energy needs. You need transportation, electricity, food, clothing, and other goods. CO2 is produced by the burning of fossil fuels which is used to provide energy for your homes, by the cars you travel in and by the manufacture and transport of goods you buy.

Carbon dioxide is also called greenhouse gas, which causes global warming. That is the reason why the carbon footprint is a very poweful tool to understand the impact of personal behaviours on global warming. If you want to contribute to stop global warming, the reduction of your personal carbon footprint is essential. Fist, you can reduce your carbon footprint by driving less. When possible, walk or ride a bike to avoid carbon emissions completely or use public transport in order to decrease CO emissions. Second, support using clean energy sources such as wind, solar, geothermal energy and biogas. Finally, reusing or recycling items you no longer use is also a good way to reduce your carbon footprint.

1. What is a carbon footprint?

A carbon footprint is the amount of carbon dioxide (CO2) released into the air by your own energy needs.

2. How is CO2 produced?

CO2 is produced by the burning of fossil fuels which is used to provide energy for your homes, by the cars you travel in and by the manufacture and transport of goods you buy.

3. What can carbon footprint cause?

It can cause global warming.

4. What should you do to stop global warming?

Driving less, supporting using clean energy sources such as wind, solar, geothermal energy and biogas.

XVI. Read the passage and choose the best answer A, B, C or D to complete the passage.

In many countries in process of industrialization, overcrowded citis present a major problem. The (1) ............ of town is mainly caused by the drift of large numbers of people from the rural areas. The only long-tẻm solution is to make (2)............. in the rural areas more attractive, which would (3)............ people to stay there. This could be achieved by providing incentives for people to go and work in the villages. Moreover, facilities in the rural areas, such as transportation, health and education services should be (4)...........

1. A. population B. popularity C. populous D. overpopulation

2. A. life B. surroundings C. atmosphere D. sights

3. A. insist B. suggest C. encourage D. persuade

4. A. invested B. improved C. impressed D. increased

Bạn nên làm gì để tạo ra lượng khí thải carbon nhỏ hơn?

Make sure you turn off all devices completely when not in use.

Sai đề rồi nha bạn Carbon không có nghĩa còn footprint là dấu chân

carbon là các-bon mà bạn