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11 tháng 4 2021

new ecological paradigm

environ mental concern

Proenvironmental Behavior

Reproductive Attitudes

Human overpopulation

cho mình xin tick nhé <3 thank bẹn

8 tháng 5 2019

2, Yes, they do.

1, Overpopulation can lead to:

-Overcrowding and poor quality housing in many large city.

-Because of the poverty, many people have to live in slums, so they get a lot of disease.

-There are many crimes in slums.

-Too many vehicles cause air pollution and noise.

-Overpopulation can create the homless and hunger.

-There is not always enough food, not enough clean and fresh water, not enough school for children.

13 tháng 5 2021

Renewable energies (or renewables) are ways to generate energy from (theoreally) unlimited natural resources. These resources are either available with no time limit or replenish more quickly than the rate at which they are consumed.

Renewable energies are generally spoken of as opposed to fossil fuel energies. The fossil fuels’ stocks are limited and non-renewable in the human timescale. The most known examples of these resources are coal, oil or natural gas. On the contrary, renewable energies are produced from renewable sources. Here, we’re talking about energy coming from solar rays, wind or water cycles – all theoreally unlimited on a human scale time.

Renewable energies are also often referred to as “green energies” or “clean energies”. Still, this doesn’t mean that these energies aren’t harmful to the environment and have zero impact. Nonetheless, they have a low environmental impact compared to fossil fuels. That’s why they’re increasingly becoming important elements in companies’ CSR strategies in terms of sustainable development.

There are several types of renewable energies that are produced by different sources such as the sun, wind or water. In fact, these renewables’ power consumption has been growing over the last year. They have provided 8% of the world’s electricity in 2017 and they now cover 1/3 of the power mix in Europe. At the same time, the energy grid gets 1/4 of the total energy in China and 1/6 in the United States, India, and Japan. Let’s learn more about them below.

  • Related content:
  • Is Solar Energy Really Green And Sustainable?

1 – Solar Energy

solar energy power plant renewable
This type of renewable energy comes directly from the capture of solar radiation. Here, the solar radiation is absorbed by specific sensors and rebroadcasted following 2 possible operation modes:

  • Capturing sun rays and directly converting them into energy through photovoltaic solar panels;
  • Capturing, collecting and turning the sunlight into heat that warms up water or air.

Examples of Solar Energy in the World

It’s estimated that in 2017 1,6% of the worldwide generated energy came from solar sources. At the same time, solar power also contributed to 20% of the total energy growth in this same year. Some of the most known sources of solar energy are:

  • The Kurnool Ultra Solar Park in India. It has a total generation capacity of 1000MW and over 4 million solar panels installed;
  • The Longyangxia Solar Park in China that has a total capacity of 850MW and covers around 25sq km.
  • The Kamuthi Solar Facility in India: it has a total capacity of 648MV and covers 10sq km.

Is Solar Energy Renewable or Nonrenewable?

Solar energy is inexhaustible in the sense that it will cease once the solar system’s star – the sun – dies. However, many people wonder if, from a perspective of human’s being able to capture and use solar energy in the long-term, whether solar energy is renewable or nonrenewable.

[Full answer available soon.]

2 – Windpower, a Renewable Energy

Wind power is another renewable energy. Here, the wind’s kine energy makes turbines spin and creates a mechanical movement. Afterward, a generator transforms this mechanical energy into electricity. There are several types of wind renewable energies: onshore wind turbines, off-shore wind turbines and even floating wind turbines. But the operating principles are basically the same for all these types of wind-generated energy.

Examples of Wind Power in the World

Wind power continues has also been growing, In fact, it provided 4.4% of global power generation in 2017. The highest installed wind capacity belongs to China (164GW). At the same time, in the EU, wind power provides 15% or more of the energy generated in several countries such as Germany, Portugal or Lithuania. Some of the most known sources of wind power energy are:

  • The Gansu Wind Farm in China. It is still under construction and it will be able to produce 20,000MV of power by 2020;
  • The onshore Muppandal Wind Farm in India with a capacity of 1,500MW and over 3000 turbines;
  • The Alta Wind Energy Center in the U.S. with a total capacity of 1,548MW that’s expected to reach 3,000MW by 2040;
  • The Walney Extension in the UK. It has a total capacity of 659MW and it’s the world’s largest offshore farm.

3 – Hydro-Electric Power


Hydro-electric power consists in the transformation of the kine energy of the water (from rivers, dams, marine currents or tides)  into mechanical energy by turbines.

  • Related content:
    • Marine energies: what is it?
    • 5 promising marine energy projects
    • The tidal energy: an example of the tidal turbine DCNS

Examples of hydro-electric power in the world

  • The Sihwa Lake Tidal Power Station in South Korea. This is the world’s biggest tidal power installation and it has a capacity of 254 MW;
  • The Rance Tidal Power Station in Brittany, France, has a 240 MW capacity;
  • The Three Gorges Dam in China is the world’s largest power station in terms of installed capacity (22,500 MW).

4- Biomass

biomass renewable energy definition
Biomass is made up of organic materials from plants or animals that contain stored energy. The combustion of these natural materials produces renewable energy. Some examples of generating energy from biomass are:

  • Directly burning solid biomass garbage or wood to produce heat;
  • Converting biomass into biogases such as methane or CO2 due to the bacterial activity that happens in the absence of oxygen (as is the case in landfills);
  • Using sugar or corn crops to create biofuels such as bioethanol or biodiesel and mixing them with fossil fuels afterward. As a matter of fact, the world’s biofuels production increased by 3.5% in 2017.

Related content:

    • Palm oil has a huge environmental impact. What’s the impact of its use as a biofuel?
    • What Is Biogas Energy Production?

Examples of Biomass Energy in the World

Some of the most known biomass power plants in the world are:

  • The Iron Bridge power station in the UK, with a capacity of 740MW. It uses wood pellets as the main fuel;
  • The Alholmenskaft power station in Finland. It has a 260MW energy generation capacity;
  • The Polaniec power plant in Poland that uses mainly agricultural by-products and wood residues. It has a 205MW capacity.

5- Geothermal Power as a Renewable Energy

geothermal energy renewables definition green
The Earth generates and stores geothermal energy. In other words, radioactive materials decaying inside the Earth are emitting energy. Electricity can be created using directly or indirectly this energy,  depending on the technology implemented. There are 3 main ways to use geothermal energy:

  • Generating electricity directly from the Earth’s heat;
  • Producing heat directly from hot water boiling on the planet’s surface;
  • Using pumps over the shallow ground to heat (and also to cool)
Topics for speaking test - English 7 ( the 2nd term) 1. talking about traffics 1, How far it is from your house to school? 2, How do you go to school? 3, How long does it take you to go from your house to school? 4, What common traffic problems do you face every day? 5, What should we do to be safe when using the road in your opinion? 2. Talking about your favourite films 1, What is the title of your favourite film? 2, What is the tupe of that film? 3, Who are the main...
Đọc tiếp

Topics for speaking test - English 7 ( the 2nd term)

1. talking about traffics

1, How far it is from your house to school?

2, How do you go to school?

3, How long does it take you to go from your house to school?

4, What common traffic problems do you face every day?

5, What should we do to be safe when using the road in your opinion?

2. Talking about your favourite films

1, What is the title of your favourite film?

2, What is the tupe of that film?

3, Who are the main actors?

4, Who is the director

5, How do you feel when you watch it?

3. Talking about your favourite festival

1, What is your favourite festival?

2, Where and when is the festival celebrated?

3, Why is the festival held?

4, How is the festival held?

5, What attracts you most in that festival?

4. Talking about the advantages and disadvantages of tupes of energy sources

1, What are renewable energy sources ang what are their advantages and disavantages?

2, What are non-renewable energy sources and what are their advantages and disadvantages?

3, What tupes of energy does Vietnam use most?

4, What can we do to save energy?

5. Talking about a future means of transport

1, How will people travel in the future?

2, What will it look like?

3, What kind of energy and what technology will it use?

4, Where can people use can?

5, What do you think about it?

6. Talking about causes and effects pf overpopulation

1, What are causes of overpopulation?

2, What are effects of overpopulation?

3, What are solutions to overpopulation?

4, What does Vietnamese government do to control population?

2
9 tháng 5 2017

thi nói à, mk xog rồi nhưng của bn có vẻ dài qá

10 tháng 5 2017

bạn học tiếng anh thí điểm? mik cũng vậy nè!

6 tháng 1 2019

Đáp án: B

5 tháng 4 2021

1 The countryside suffers less pollution than the city

2 Overpopulation causes a lot of social problems in this area, doesn't it?

3 Solutions will be found by scientists to reduce pollution in our city

4 Can you let me know the price of the holiday?

4 tháng 7 2018

1.not enough space

2.crime

3.air pollution

25 tháng 4 2022

bạn tham khảo nha

I have lived in Ha Noi for many years. Ha Noi is a big and busy city. There are lots of vehicles on the road all day. There are lots of cars, buses, taxis and trucks on high ways. Vietnamese people like moving by motorbike. Almost every family has a motorbike. The traffic jam is often at about 7 a.m and 5 p.m because it’s the time when people go to work or school and come back home. There are sometimes accidents on the road. Therefore, to reduce these problems, we need to obey traffic rules to reduce accidents as much as possible.

 

Bài dịch

Tôi đã và đang sống ở Hà Nội nhiều năm. Hà Nội là một thành phố lớn và bận rộn. Có nhiều phương tiện trên đường mỗi ngày. Có nhiều ô tô con, xe buýt và xe tải trên đường cao tốc. Người Việt Nam thích di chuyển bằng xe máy. Hấu hết mỗi gia đình đều có một chiếc xe máy. Ùn tắc giao thông thường vào lúc 7 giờ sáng và 5 giờ chiều bởi vì đây là thời điểm mọi người đi làm hoặc đi học và trở về. Có nhiều vụ tai nạn trên đường. Vì vậy để giảm thiểu các vấn đề này, chúng ta cần tuân thủ các luật giao thông để giảm thiểu tai nạn nhiều nhất có thể.

chúc bạn học tốt nha

25 tháng 4 2022

dạ, em cảm ơn anh!hihi