Answer:
The answer is false. First part correct, second incorrect.
Explanation:
The affirmation “The polarity of an oxygen-hydrogen bond is higher than the polarity of a nitrogen-hydrogen bond” is correct: Oxygen is more electronegative than Nitrogen (3.5 O, and 3 N), then when they form a covalent bond with Hydrogen, OH-bond polarity is higher than NH-bond polarity. Nevertheless, the consequence is that alcohols (that have OH characteristic group) are more soluble in water (polar solvent) than amines (NH group). Then, second part of the affirmation is incorrect.
Answer:
False
Explanation:
Did the test and got it right
Answer:
Chromatids of homologous chromosomes exchange corresponding segments.
Explanation:
The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. Homologous chromosomes are present in the meiosis I, but not in meiosis the II. After pairing up of in the prophase I, homologous chromosomes are able to exchange some corresponding segments and a cross-over occurs. Thanks to the cross-over event, each chromosome will have a new combination of genes. Without this, parents will produce gametes with only two different gene combinations.
Answer:
Chromatids of homologous chromosomes exchange corresponding segments.
292 million years is the answer
2.composite cone volcanoes
3.shield volcanoes
4.pyroclastic volcanoes
Answer:
Shield volcanoes.
Explanation:
Hawaiian volcanoes are the types of vulcanos known as shield vulcanos. Their shape is slightly dome, it is like an inverted shield. They are located in a big area and they don’t have explosive eruptions. This type of vulcanos is created when magma enters the fracture of the stone. One of the most famous volcanos of this type is Mauna Loa in Hawaii.
Material
Interactions
List any observations you made as the light rays passed from the air on the top of the screen to the selected material on the bottom of the screen.
Evidence
Using the protractor, measure the angle as the light passes from the top material to the bottom material on the screen. Also, note the index of refraction for each as indicated on the screen.
Trial One
Air on top
Angle:
Index of refraction:
Air on bottom
Trial Two
Air on top
Angle:
Index of refraction:
Water on bottom
Trial Three
Air on top
Angle:
Index of refraction:
Glass on bottom
In this lab report, you are required to record data and observations about the properties of light as it passes through different materials. You will fill in a data chart with information from each trial.
For each trial, you will have air on the top and a different material on the bottom of the screen. As the light rays pass from the air to the material, you need to make observations and note any changes you see. These observations could be related to how the light behaves or any visible effects.
Next, you need to measure the angle as the light passes from the top material to the bottom material using a protractor. Additionally, note the index of refraction for each material as indicated on the screen.
Here is a step-by-step breakdown of what you need to do:
1. Trial One:
- Air on top
- Make observations as the light rays pass from the air to the selected material on the bottom.
- Measure the angle using a protractor.
- Note the index of refraction for each material.
2. Trial Two:
- Air on top
- Make observations as the light rays pass from the air to the selected material on the bottom.
- Measure the angle using a protractor.
- Note the index of refraction for each material.
3. Trial Three:
- Air on top
- Make observations as the light rays pass from the air to the selected material on the bottom.
- Measure the angle using a protractor.
- Note the index of refraction for each material.
Remember to fill in the data chart completely for each trial, including the angles and index of refraction values.
I hope this explanation helps you understand what you need to do in your Properties of Light Lab Report. If you have any further questions, feel free to ask!
Answer: 1.Trial One
2.Trial two
3.Trial three
contour farming:
Contour farming has been practiced for centuries in parts of the world where irrigation farming is important. Although in the United States the technique was first practiced at the turn of the 19th century, straight-line planting in rows parallel to field boundaries and regardless of slopes long remained the prevalent method. Efforts by the U.S. Soil Conservation Service to promote contouring in the 1930s as an essential part of erosion control eventually led to its widespread adoption.
The addition of unwanted substances that alters the physical and chemical attributes of the atmospheric air and environment is called air pollution.
Globalization is the growing independence of the population, economics and cultural characters by the trade of commodities and people.
It is increasing due to the technologies and transportation advancements. Various countries and communities have numerous cultural, resources and skilled assets.
The increase in globalization in China's largest cities have affected the environmental conditions and factors causing pollution.
China has the largest manufacturing industries located in cities like Shanghai, Shenzen and many others.
The establishments of factories and industries in these cities caused a large clearing of lands and trees. Deforestation in these areas caused a decrease in the oxygen levels of the region.
The smoke and wastes from the industries and factories have caused the air of the area to be polluted. This has increased the temperature of the surroundings.
In China use of the coals and heating techniques have raised and contributed to global warming.
Therefore, air pollution in China will be increasing as many factories and establishments are contributing to pollution and deforestation.
To learn about globalization and global warming follow the link:
Answer:
Globalization is a term that relates to businesses operating on a worldwide scale as opposed to just locally. This is possible due to modern transportation and technological advancements. Each country has different resources and skill sets to produce goods and services. The goods and services chosen are typically based on comparative and absolute advantages which determine what countries can produce what goods and services with the least effort. However, the increase in production has negative effects on the environment as a result of the process causing pollution.
In the last 30 years, China has risen to the top as the world's largest nation. In fact, China has resulted in over 400 million people rising above the poverty line which can never be repeated. In all this China has effectively become the "factory of the world". Large economies were developed in cities like Shenzhen, Tianjan, Shanghai, etc. There were hundreds of factories clustered together. These factories made lots of mass produced items to be exported all over the world. Within the country itself, this has led to increasing problems of pollution because millions of trees had to be cut down to make space for business buildings and factories. This led to decreasing oxygen in the air. After this, the increasing cars, fumes in factories, ac units, ect contributed to the rising temperatures and pollution in the air. Increased consumption leads to an increase in the production of goods, in this case it puts stress on the environment. Globalization causes rise in the amount of fuel that is consumed in transporting these products has led to an increase in the pollution levels in the environment. Seventy percent of chinese households burn coal or biomass for cooking and heating, which contaminates indoor air.
In conclusion, Air pollution will remain a serious problem in China as long as factories are being used, businesses keep being built and trees cut down, and coal continues to be the country's major energy source. In the last 30 years, China has risen to the top as the world's largest nation. The cities are becoming extremely hot due to the added pollution as their population grows.There were a lot of factories clustered and these factories made lots of mass produced items to be exported all over the world. Within the country itself, this has led to increasing problems of pollution because millions of trees had to be cut down to make space for business buildings and factories.
Explanation: this is the final draft