what is soil erosion
In this process, the soil particles are loosened or washed away in the valleys, oceans, rivers, streams or far away lands. This has been worsening due to human activities such as agriculture and deforestation.
Soil erosion is a continuous process that occurs either slowly or at an alarming rate. It results in a continuous loss of topsoil, ecological degradation, soil collapse, etc.
Which event was a major source of atmospheric oxygen?
photosynthesis
volcanic eruptions
decomposition of water
outgassing
Answer:
Photosynthesis was a major source of atmospheric oxygen.
Explanation:
Earth's atmosphere was not the same as it is in the past. For a larger portion of Earth's history, the atmosphere actually didn't have an atmosphere or the one it had was not suitable for complex lifeforms to develop. This all changed because of one major event, the process of photosynthesis.
Initially, it was the cyanobacteria that started to use this process in order to produce their own food and energy. Basically, this process meant that the cyanobacteria, and a lot of later organisms, were taking in carbon dioxide, use it for their own needs, and release the oxygen. The oxygen was released into the ocean and into the atmosphere, which resulted in a gradual change in the composition of the atmosphere to a degree where it was suitable for larger organisms to start to develop.
What's the furthest point from land in the world?
Answer:
Point nemo
Explanation:
The United States’ economy produces 20% of the world’s __________. A. input B. wealth C. output D. resources
Answer:
Output
Explanation:
Answer:
C. output
Explanation:
North America, the Caribbean, and Latin America are examples of
All of the above
Functional Region
Perceptual Region
Formal Region
Answer:
North America, the Caribbean, and Latin America are all examples of formal regions.
Explanation:
Formal regions are regions that are defined as such based on one or more characteristics that are shared by the inhabitants of the region. In some cases, the boundaries between formal regions are not visible, while in other cases there are geographical features that clearly distinguish them.
North America, the Caribbean, and Latin America are all examples of this type of region. The majority of the population in each of them has characteristics that are common, but also distinguish them from the other regions. These shared characteristics can be seen in the dominant culture (English-based, Spanish/Portuguese-based, a mixture of several), religion, lifestyle, race, ethnicity, language, etc.
B
A
N
S
С C
D
Which point on the diagram best represents the positions of the Earth and the
Sun when it is summer in North America?
A
Point A
Point B
с
Point C
D
Point D
