1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arturiano [62]
3 years ago
7

As soil develops it forms layers or horizons which are often categorized as

Geography
1 answer:
SashulF [63]3 years ago
5 0
I belive it it O because <span>An O horizon has at least 20%  </span>organic matter<span> by mass. Two main scenarios result in the formation of an O horizon: saturated, </span>anaerobic<span> conditions (wetlands) or high production of leaf litter in forested areas. Anaerobic conditions slow the </span>decomposition<span> process and allow organic material to accumulate. An O horizon can have various stages of decomposed organic matter: highly decomposed, sapric; moderately decomposed, hemic; and minimally decomposed, fibric. In a fibric O layer, plant matter is recognizable (e.g., it is possible to identify a leaf). Sapric material is broken down into much finer matter and is unrecognizable as a plant part. Hemic is in between sapric and fibric, with some barely recognizable plant material present. It is possible to have multiple O horizons stacked upon one another exhibiting different decomposition stages. Because of their organic content, these horizons are typically black or dark brown in color. The dominant processes of the O horizon are </span>additions<span> of organic matter, and </span><span>transformations </span><span>from fibric to sapric 


</span>
You might be interested in
Match terms with definitions. (eutrophication, fallout, carbon neutral, collective, desertification, wetlands, acid rain)
trasher [3.6K]

1. precipitation that has become acidic through the absorption of pollutants in the atmosphere, such as sulfur and nitrogen oxides  - acid rain

The acid rains have become a big problem in the last couple of centuries. These rains can occur because of natural causes, but the real problem occurred after the Industrial Revolution started. Through the industry, the people started to propel enormous amounts of pollutants into the atmosphere, and that trend has been continuing and the amount of pollutants constantly increasing. These pollutants manage to merge with the clouds, and once the conditions are right for rain to occur, they mix with the drops, and fall together with it back on the ground. These rains are very dangerous for the health, especially for the respiratory system of the animals, destroys the plants, and causes increased erosion.

2. referring to a product or process that does not add more carbon dioxide to the atmosphere  - carbon neutral

Carbon neutral is a term that is used for the products or process that do not contribute to releasing carbon dioxide into the atmosphere, but instead use other methods for their work. This is a relatively new thing in the global industry. It is a process that has been encouraged by most of the major economies and the most influential organizations in the world, with the main reason being the reduction of carbon dioxide emission into the atmosphere. The reason why the carbon dioxide emissions should be lowered and there's an ever growing concern about it is that this gas is the one most responsible for the Greenhouse effect, resulting in an increase of the global temperatures, climate changes, melting of the ice sheets, rise of the sea levels etc.

3. government-controlled farm - collective

The collective can simply be described as a farm that is controlled by the government. This type of farms were and still are typical for the socialist and communist countries, thus the countries that have command based economy. Basically, in this type of economies, the governments control everything in the production and selling of goods and services, including the production and selling of agricultural goods. The government owns the farmland, plans what should be produced, in what amount, and in what way. Unfortunately for the people, this type of managing the agriculture often created huge problems, with the lack of food occurring very often, and lot of people ending up suffering from malnutrition, or even starving to death as was the case in the Soviet Union and Maoist China.

4. a change causing an area to become more arid - desertification

The desertification is a process through which an area becomes more and more arid, gradually transforming the landscape into a desert. This process can happen naturally, because of the human activity, or a combination of both. The human activity though has increasing this process, mostly because lot of areas have been cleared from their vegetation, destroying the soil, and the changes in the climate because of the industry. Lot of effort have been put lately to stop this process and reverse, with the success being greater at some places, and lesser at other places. China managed to convert big portion of its northern deserts into green land, and it continues to do so, while in Africa there's collaboration between several nations that together make a continuous line of trees to stop the spreading of Sahara.

5. a process by which nutrients are dissolved in a body of water, increasing plant growth and resulting in reduced oxygen levels and fish populations - eutrophication

The eutrophication is a process through which a significantly larger amount of nutrients than what there is naturally come into the waters, resulting in much increased nutrients in it. While at start there is a boom in the growth of the plants, the situation quickly becomes very bad. As more and more plants and algae grow they cover the surface of the water body. By doing so they stop the sunlight, as well as depleting the oxygen in the water in meantime. The lack of sunlight and oxygen results in mass dying out of the aquatic life, soon turning the body of water very poor in marine life and a natural graveyard for the marine animals.

Download docx
5 0
3 years ago
The Italian merchants sometimes sailed across the Mediterranean Sea to Syria, where they could buy black pepper that had been gr
ruslelena [56]

Answer:

In the Middle Ages, spices that are now ordinary were rare imports from faraway places.

Explanation:

The central idea of the text can be defined by the excerpt above.

The text is explaining the process that Italian merchants had to go through in order to carry a expensive spice (pepper) from Syria to the fairs of Champagne, in France.

This is because spices were a very well-regarded and expensive product that could only be afforded by the wealthy at the time, since shipping methods at the time were primitive (slow ships, camels), raising the cost of these products to levels that would be hard to imagine today.

7 0
3 years ago
Explain valence electrons.
aalyn [17]
Valence electrons, then, are electrons in the outermost shell of the atom that determine an atom's or group's ability to bond with others. In chemistry, a group refers to two or more atoms that are specifically arranged.

Hoped that helped
4 0
2 years ago
Reducing access to waterways will eat to an increase in human impact on waterways
vekshin1
It's false by adding access to waterways will have an greater impact on waterways.
6 0
3 years ago
This graph shows a large number of immigrants to the United States in the early 1900s. Why was there a sharp increase in immigra
Semmy [17]

Answer:

B. Rapid development of technology.

Explanation:

Airplanes were not a thing yet. Railroads were still the main form of transportation at that time.

6 0
3 years ago
Other questions:
  • The corona sends out a stream of charged particles called
    5·1 answer
  • In 1713 France owned most of what part of North America ??
    10·1 answer
  • Which are included in the five subfields of geography
    5·2 answers
  • What is the moral/ethical code of conduct for Judaism​
    8·1 answer
  • How did geography affect the development of civilization?
    7·2 answers
  • An earthquake has just occurred. seismic waves from the earthquake are detected at two recording stations.
    8·1 answer
  • Which country is LEAST likely to experience devolution?
    10·2 answers
  • Given 5 cm represents 120m , find the scale used​
    6·1 answer
  • Give two examples of geographic representations other than a map.
    11·2 answers
  • Currently, North America has about of the world's population and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!