One common concern nowadays is how modern lifestyles can have a negative effect on family life. A particular worry is that parents no longer are able to provide sufficient care and support for their children. My own view is that this is generally true, but not always so.
If we look at the past, the traditional family structure was the husband was the head of the family and his duty was to provide for his immediate family by going out to work. His wife’s role was to stay at home and bring up the children. In this situation we should note that the children frequently did not see much of their father during the working week.
In the present day, that traditional structure has changed in many cultures. One reason for this is that it is more and more common for the wife to go out to work because it is now accepted that woman have as much right to work as men. A consequence of this is that many children do not see their mother as often as they would have done in the past. A second reason is that divorce has increased and in single-parent families children only ever see one parent.
Air pollution is a problem only if you want humans to stay alive. We are just one part in a cycle of life. We depend on other plants and animals for life and they depend on each other. Air pollution is starting to effect climate and it is killing off both plants and animals at an alarming rate. At some point it will reach a tipping point and there will be a collapse of the entire ecosystem. Air pollution is the introduction of chemicals, particulates, biological materials, or other harmful materials into Earth's atmosphere, possibly causing disease, death to humans, damage to other living organisms such as food crops, or to the natural or built environment.
The atmosphere is a complex natural gaseous system that is essential to support life on planet Earth. Air pollution is a significant risk factor for multiple health conditions including respiratory infections, heart disease, and lung cancer, according to the WHO. The health effects caused by air pollution may include difficulty in breathing, wheezing, coughing, asthma and aggravation of existing respiratory and cardiac conditions. I think the air pollution is the most important problem in the world. Global warming is recognized by almost all atmospheric scientists as a significant environmental problem caused by an increase in levels of certain trace gases in the atmosphere since the beginning of the Industrial Revolution in the mid-18th century. These gases, collectively called greenhouse gases, include carbon dioxide, organic chemicals called chlorofluorocarbons (CFCs), methane, nitrous oxide, ozone, and many others. Carbon dioxide, although not the most potent of the greenhouse gases, is the most important because of the huge volumes emitted into the air by combustion of fossil fuels (e.g., gasoline, oil, coal).
A healthy diet is one that helps maintain or improve general health. A healthy diet provides the body with essential nutrition: fluid, adequate essential amino acids from protein, essential fatty acids, vitamins, minerals, and adequate calories. The requirements for a healthy diet can be met from a variety of plant-based and animal-based foods. A healthy diet supports energy needs and provides for human nutrition without exposure to toxicity or excessive weight gain from consuming excessive amounts. Where lack of calories is not an issue, a properly balanced diet (in addition to exercise) is also thought to be important for lowering health risks, such as obesity, heart disease, type 2 diabetes, hypertension and cancer.
Various nutrition guides are published by medical and governmental institutions to educate the public on what they should be eating to promote health. Nutrition facts labels are also mandatory in some countries to allow consumers to choose between foods based on the components relevant to health.
An unhealthy diet is a major risk factor for a number of chronic diseases including: high blood pressure, diabetes, abnormal blood lipids, overweight/obesity, cardiovascular diseases, and cancer.
The WHO estimates that 2.7 million deaths are attributable to a diet low in fruit and vegetable every year. Globally it is estimated to cause about 19% of gastrointestinal cancer, 31% of ischaemic heart disease, and 11% of strokes, thus making it one of the leading preventable causes of death worldwide
Fad diet usually refers to idiosyncratic diets and eating patterns. They are diets that claim to promote weight loss or treat obesity by various mechanisms, provide little to no scientific reasoning behind their purported health benefits, and have little or no proof to support them.
Water pollution is the contamination of water bodies (lakes, rivers, oceans, aquifers and groundwater). Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
Water pollution affects plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.
The effects of water pollution are varied and depend on what chemicals are dumped and in what location. Many bodies of water are polluted near urban areas. This is because both garbage dumped by individuals and chemicals dumped legally or illegally by industries. Dead fish, dolphins, birds, and many other animals wind up on beaches, killed by harmful pollutants. Many areas are being effected by careless pollution, and it is coming back to hurt humans.
5 monologIn some societies it is common to try to achieve good health and fitness through physically sports, special diets, or preventative medicine conventional or alternative. Some people, however, believe that the best way to stay fit and healthy is simply to lead a normal life.To what extent do you agree or disagree with this opinion?i am preparing for ielts tests, but my writing skill is not good, i hope you can help me to check this essay, thanks so muchOur health is the only thing we really have in the world. We can be taken away our money, clothes or houses we still survive: however, without health, we can not be in existence. Therefore, some people hold opinion that we should do sports, have good diet, and use preventative medicine to get healthier. Others, however, believe that having a normal life is the best way to achieve a healthy and fit body. Personally, I definitely agree with the former. In the following paragraphs, I will give my reasons to support my point of view.To begin with, in modern society, we are becoming busier for our jobs; therefore, we should try to play sports to contribute to a healthier, fitter body. Nowadays, most work requires people with some certain skills; hence, during office time, we work with our brains mainly, our bodies may not move enough as we used to before with manual work. And of course, only with equal both physical and metal can bring our good health. When we do exercises in the gym or play sports in sport center, our bodies have to move a lot. So, we can burn energy, it makes us stronger and helps us to equal them.In addition, we should care about our diet. With development of technology, there are not only more types of a certain kind of food, but also many others created and they make our lives more convenient. Nevertheless, preprocessed or cooked foods often contain high fat, sugar which is not good for health. Moreover, people now often go to market and get foods and vegetable for whole week; consequently, they are alleviated freshness, quality as they are.However, other people believe that getting a normal life is the best way to become healthier and fitter. It would be right if they were living in the eighteenth century. They forget that we are living in 21th century, it is really different: lifestyles, foods, work, and environment. It is wrong when they bring the things in past to apply in the modern world.In conclusion, I strongly believe that to possess a healthier and fitter body we should play sports, do exersices and have a suitable diet
People's concerns about environmental problems, and their views about the importance of environmental protection may influence their attitudes and behaviour towards environmental protection policy and programs. For example, people who are concerned about protecting the environment may be more willing to recycle household garbage, to conserve energy and water or to reduce use of private motor vehicles in favour of public transport. They might also be more likely to accept the economic trade-offs many believe are inherent in pursuing national and international policies aimed at protecting the environment and achieving ecologically sustainable development.
A 1996 survey of environmental issues found that 68% of Australians aged 18 years and over were concerned about at least one environmental problem, a decline from 75% in 1992. It could be that people are taking comfort from the perception that these problems are being addressed. On the other hand, matters such as unemployment, crime and health may have displaced environmental issues in people's minds.
Ozone layer or ozonosphere, region of the stratosphere containing relatively high concentrations of ozone located at altitudes of 12-30 mi (19-48 km) above the earth's surface. Ozone in the ozone layer is formed by the action of solar ultraviolet light on oxygen.
The ozone layer prevents most ultraviolet (UV) and other high-energy radiation from penetrating to the earth's surface but does allow through sufficient ultraviolet rays to support the activation of vitamin D in humans. The full radiation, if unhindered by this filtering effect, would destroy animal tissue. Higher levels of radiation resulting from the depletion of the ozone layer have been linked with increases in skin cancers and cataracts and have been implicated in the decline of certain amphibian species.
In 1974 scientists warned that certain industrial chemicals, e.g., chlorofluorocarbons (CFCs) and to a lesser extent, halons and carbon tetrachloride, could migrate to the stratosphere. There, sunlight could free the chlorine or bromine atoms to form chlorine monoxide or other chemicals, which would deplete upper-atmospheric ozone. A seasonal decrease, or "hole," discovered in 1985 in the ozone layer above Antarctica was the first confirmation of a thinning of the layer. The hole occurs over Antarctica because the extreme cold helps the very high clouds characteristic of that area form tiny ice particles of water and nitric acid, which facilitate the chemical reactions involved. In addition, the polar winds, which follow a swirling pattern, create a confined vortex, trapping the chemicals. When the Antarctic sun rises in August or September and hits the trapped chemicals, a chain reaction begins in which chlorine, bromine (from the halons), and ice crystals react with the ozone and destroy it very quickly. The effect usually lasts through November. There is a corresponding hole over the Arctic that similarly appears in the spring, although in some years warmer winters there do not result in a major depletion of the ozone layer. A global thinning of the ozone layer results as ozone-rich air from the remaining ozone layer flows into the ozone-poor areas.
An exhibition, in the most general sense, is an organized presentation and display of a selection of items. In practice, exhibitions usually occur within museums, galleries and exhibition halls, and World's Fairs. Exhibitions include (whatever as in major art museums and small art galleries; interpretive exhibitions, as at natural history museums and history museums), for example; and commercial exhibitions, or trade fairs.
Exhibitions may be permanent displays or temporary, but in common usage, "exhibitions" are considered temporary and usually scheduled to open and close on specific dates. While many exhibitions are shown in just one venue, some exhibitions are shown in multiple locations and are called travelling exhibitions, and some are online exhibitions.
Theater is one of the best means of art and entertainment, which brings cultural enrichment. It uses live performers on stage to express different plays. From the times of its appearance theater has changed a lot. There were especially many transformations in modern times. The only genres seen in the theater of ancient times were tragedy and comedy, whereas nowadays there are lots of contemporary genres and styles. Even the types of theaters vary from classical to musical lines. People have always liked visiting theaters for relaxing, entertaining and just having a good time. Our country has lots of theaters to offer to its citizens. Everyone can find something suitable for their tastes. People who like dramas go to drama theatres, those who like musical plays can visit opera theaters, so there is always a choice where to go. The theater can be divided into two parts: one is the stage where actors perform their roles, the other is the hall where spectators sit. The hall and the stage are separated by a curtain and orchestra. Besides, every theater has a cloak-room and a restaurant. Theatres may vary a lot in sizes. Some can host only 50 people, and some are meant for thousands of spectators. For example, the Bolshoi Theater in Moscow can host about 2150 people. The other huge and world-famous theaters are Metropolitan Opera and Broadway Theater in New York, Sydney Opera House in Sydney, Theater La Scala in Italy, Covent Garden in London and several others.