Silicon dioxide

The winter months are very hard on roofs. Wind, snow and ice exert pressure on the shingles, which can damage them and make the roof leak. In extreme cases, heavy snow can collapse a roof or bring down a tree branch and severely damage a roof. Here are some things you can do to protect your roof this winter and reduce the need for major repairs in the spring. Fix Any Weak Areas Loose, curling or missing shingles should be repaired before winter sets in. High winds can loosen them further…

Tropical forests are found near the equator in Central America, parts Africa and Asia. They are very hot and humid and contain a huge variety of plants and animals round half of the entire world's species. Trees are mostly hardwood. “The world's largest tropical rainforests are in South America, Africa, and Southeast Asia” (Line3 TR), this explain as to why the temperature in these places tend to be humid. Tropical forest is a great place for many different species of plant to grow because of…

One of the regional differences I note in the data is the lack of golf courses on the West Coast of the United States. In the East Coast and Mid-Atlantic regions of the United States, golf is best served. Another region that is very well served is Florida. Generally speaking , the Deep South and West Coast regions of the U.S. lack the most golf courses. Some of the factors I believe account for this difference are environmental determinism and cultural traits. I think environmental determinism…

rainforests will be gone! That also includes plants. That means less oxygen for us to breath. The climate will also go up because the rainforest is what keeps the world cool. More carbon dioxide will be produced when the factories are built (ReadWorks). By cutting down the trees, there will be less space to store the carbon dioxide (ReadWorks). In conclusion, we need to save the Amazon. We can’t have beautiful animals go extinct or go endangered. We can’t have people suffer from lack of food. We…

Astronomy was made 30,000 years ago by people who looked at the things in our sky.There work paved the road for our projects today. Celestial phenomena attracted the attention of our ancestors and how they dealt with what was seen was called archaeoastronomy. Archaeoastronomers try to figure out what the ancient people studied, how they studied them, and what they learned. By exploring the ancient astronomy, we hope to learn more about those civilizations. In 1992 a crater under the Yucatan…

Coal Energy vs Wind Energy The United States alone burns more than a billion tons of coal every year, making up more than half of the electricity used in the US from coal power. However, burning fossil fuels also causes 78 percent of the United States global warming emissions, 32 percent being from coal. In order to combat these pollutants and hopefully cut down prices different cleaner, and renewable energy alternatives are being used instead. One of these newer and effective forms of…

Clean coal can also be very dangerous. Clean coal technologies are sought out to lessen the environmental impact but, it is harming it. More and more carbon dioxide is being added to the atmosphere. This increase in carbon dioxide directly effects global warming. This could have the potential to kill several people by the thousands, who can encounter possible heart attacks and asthma attacks. Several people believe in the idea that coal production…

The text, 2BO2B by Kurt Vonnegut talks about a man named Edward K Wehling Jr, who waited for the birth of three triplets. Because of population control, Mr.Wehling was only able to take one of the three triplets home, according to the law. He sit in the waiting room, followed by Leora Duncan and Dr. Hitz. Mr. Wheeling becomes angered by the law, then shoot the two and himself to make room for the triplets to all survive. In the text, having population control benefited life, but not others. The…

Yes, I believe that using controlled fires to protect wild areas are beneficial. Controlled fires help maintain the health of an existing natural area containing native plants and they help manage weeds and other growth, which helps to reduce the risk of wildfires. Fire is one of the best outdoor management tools for invasive plant control. For over 10 years ecologists have been using this technique, which has spread to many other trained people to use as a tool. Woodlands, prairies, and…

mitochondria and requires oxygen, anaerobic metabolism occurs in the cytoplasm and it does not require oxygen. During aerobic metabolism the hydrogen and carbon molecules from dietary fats, proteins, and carbohydrates are mixed with oxygen to form carbon dioxide and water as energy is released. These end products that are produced during aerobic metabolism are to some extent harmless and simply eliminated from the body. The citric acid cycle, sometimes called the Krebs cycle, provides the final…