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Pollution

Thick black smoke curling out of smokestacks, horrible-tasting chemicals in your drinking water, pesticides in your food - these are examples of pollution. Pollution is any contamination of the environment which causes harm to the environment or the inhabitants of the environment. There are many kinds of pollution, and there are many pollutants. Some obvious kinds of pollution are pollution of the air, soil, and water. Some less obvious, or less salient kinds of pollution are radioactive, noise, light pollution, and green-house gasses.

Air pollution can be caused by particles, liquids, or gases that make the air harmful to breathe. There are two main types of air pollution: primary and secondary. Primary pollutants enter the air directly, like smoke from factories and car exhaust. Secondary pollutants are chemicals that mix together to pollute the air, like mixtures of emissions, or waste output, from vehicles and factory smoke that change to form more dangerous pollutants in the air and sunlight.

Soil pollution can be caused by pesticides, leakage..........................chemical tanks, oil spills, and other chemicals..........................get into the soil by dumping or accidental contamination. Soil pollution can also cause water pollution.............................underground water becomes contaminated by coming.............................contact with the polluted soil.

Water pollution can be caused by waste products, sewage, oil spills, and litter in streams, rivers, lakes, and oceans. Some scientists believe that water pollution is the largest cause of death and disease in the world, causing about 14,000 deaths in the world each day.

Radioactive pollution can be caused by leaks or spills of radioactive materials. These materials can come from medical sources, nuclear power plants, or laboratories which handle radioactive materials. Air, soil, and water can be polluted by radioactivity. It can cause damage to animals, both internally and externally, by eating, drinking, or touching it. It can cause birth defects and genetic problems. It can cause certain cancers and other deadly diseases.

Noise pollution can be caused by vehicle, aircraft, and industrial noise. It can also be caused by military or experimental sonar. Noise has health effects on people and animals. In people, it can cause high blood pressure, heart problems, sleep disturbances, and hearing problems. In animals, it can cause communication, reproductive, and navigation problems – they have difficulty finding their direction. Sonar has even caused whales to beach themselves because they respond to the sonar as if it were another whale.

Light pollution can be caused by advertising signs, stadium and city lighting, and other artificial lighting (like the light caused by night traffic). Artificial lighting has health effects on humans and animals. In people, it can cause high blood pressure and affect sleeping and waking rhythms and immunity. It might be a factor in some cancers, such as breast cancer. In animals, it can affect sleeping and waking rhythms, navigation, and reproduction.

In addition, greenhouse gases have caused a warming effect on the earth’s climate. The greenhouse gases are water vapor, carbon dioxide, methane, and ozone. They are naturally–occurring gases in the atmosphere, but human activity has increased their concentration in the atmosphere. For example, the levels of carbon dioxide (CO2) in the atmosphere have risen due to the burning of fossil fuels. The effect is a rise in global temperatures. The higher temperatures cause the melting of glaciers, a rise in the water level of oceans, and the disruption of both land and marine life, including that of humans. Although carbon dioxide is necessary for plants to survive, it is also considered to be a kind of pollution because high levels of carbon dioxide have caused the oceans to become more acidic.

It is not possible for anyone to predict the exact timing and effects of global pollution and global climate change brought about by pollution. There is general agreement by scientists that the global climate will continue to change, that the intensity of weather effects will continue to increase, and that some species of animals will become extinct. There is also general agreement, or consensus, that humans need to take steps to reduce emissions of waste products and greenhouse gases into the atmosphere, make adaptations to the changes that are occurring, and figure out ways of reversing the trends of pollution and global warming.

POLITICAL POLLS

Despite their popularity, political polls, often seen on TV during elections, sometimes give _______1 results, and some Americans question their _______ 2 .

_______ 3 both 2016 and 2020, most national polls overestimated support for Democrats. Polls aim to show what people think at a certain time but can be tricky to predict future outcomes accurately.

Mallory Newall explains that reliable polls focus on understanding public opinions rather than just predicting election winners. She warns _______4 reading too much into small differences in polls, especially far _______5 election day. Red flags for bad polls include _______6 the right people and not being clear about how the data was collected.

Polling methods _______ 7 since 2016, with more surveys done on line. Online surveys may influence results; however, concerns remain about reaching everyone, especially in rural areas without good internet. Although _______8 challenges, polls remain important _______9 public opinion.

Source:

https://www.newsinlevels.com/products/political-polls-level-3/

Text: “Why do people collect?”

Petra Engels owns 19,571 erasers, Carol Vaughn has 1,221 bars of soap, and Ralf Shrőder has a collection of 14,502 packets of sugar. Many people love to collect things, but why? Psychologists and collectors have different opinions.

The psychologist Carl Jung believed that collecting is part of our ancient human history. Thousands of years ago, humans collected nuts and berries. They kept them carefully and ate them when there was no food. The best collectors survived long cold winters or seasons without rain. Their genes passed to future generations. Nowadays, we still have a collecting instinct.

Historian Philipp Bloom has a different opinion. He thinks collectors want to make something that will remain after their death. By bringing many similar items together, the collector gains historical importance. Sometimes their collections become museums or libraries, for example, Henry Huntington, who founded a library in Los Angeles to house his collection of books.

Author Steve Roach thinks that people collect things to remember their childhood. Many children collect things, but few have enough money to buy the things they really want, and they lose interest. In later life, they remember their collections fondly. Now, they have enough money and opportunity to find special items, and they start collecting again. This way, they can re-live and enjoy their childhood years.

Art collector, Werner Muensterberger, agrees that collecting is linked to childhood. But he believes we collect in order to feel safe and secure. While babies hold blankets or toys to feel safe when their mother isn’t there, adults collect things to stop feeling lonely or anxious.

Autograph collector Mark Baker agrees that collecting is emotional, but he doesn’t collect to reduce anxiety. “For me, it’s the excitement,” he says. “I love trying to get a famous person’s autograph. Sometimes I succeed, and sometimes I fail. Also, by collecting autographs, I feel connected to famous people. I don’t just watch them on television. I actually meet them.”

These are just a few reasons for collecting. Do you know any people with collections? Why do they collect?

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