Which statement best describes the effects of desertification Brainly?
Answer: C. It results in a growing desert and a shrinking Sahel.
Which of the following statements best describes desertification?
Desertification is increasing, and the desert is expanding. The statement that best describes what is occurring in the land surrounding the Sahara Desert is: Desertification is increasing, and the desert is expanding.
What is the impact of drought and desertification on the environment?
Desertification, an extreme form of land degradation, is a global phenomenon that is influenced by and has an impact on climate change and biodiversity loss. Land degradation causes a decline in land productivity and is therefore likely to lead to increased levels of poverty.
What effects did desertification have on African peoples?
The degradation of drylands in Africa is forcing people who can no longer make a living off the land to move to urban areas. According to the UN Population Division, the population of Lagos, Nigeria, will grow from 13.4 million in 2000 to 23.2 million in 2015, partly due to an influx of displaced rural communities.
What are the harmful effects of desertification quizlet?
Population increase, cutting trees, over-cultivation, overgrazing and opening up marginal land. Change in ecological system, effect on human activities, decrease in crop yield, sandstorms and flooding. Desertification not only affects the local people, but also the rest of the world.
Why is desertification bad?
Agriculture is a main source of income for many desert communities. The increase in desertification in these regions has degraded the land to such an extent where people can no longer productively farm and make a profit. This has negatively impacted the economy and increased poverty rates.
How can desertification affect humans?
Land degradation and desertification can affect human health through complex pathways. As land is degraded and deserts expand in some places, food production is reduced, water sources dry up and populations are pressured to move to more hospitable areas. the spread of infectious diseases as populations migrate.
What areas are affected by desertification?
Drylands encompass around 38% of the Earth’s land area, covering much of North and southern Africa, western North America, Australia, the Middle East and Central Asia. Drylands are home to approximately 2.7 billion people (pdf) – 90% of whom live in developing countries.
What are the impacts of drought on the economy?
Examples of economic impacts include farmers who lose money because drought destroyed their crops or ranchers who may have to spend more money to feed and water their animals. Economic impacts can be both direct, such as decreases in dairy production, and indirect, as seen by increases in the price of cheese.
What is the impact of desertification on the economy?
Desertification mostly affects rural households who are forced to depend on natural resources for their livelihoods. More so, drought and desertification lead to the migration of people to urban or other areas to engage in economic activities such as farming, grazing and fishing.
What are the diseases caused by drought?
Lack of water supply and sanitation services, malnutrition, displacement and higher vulnerability of the population all increase the risk of infectious diseases such as cholera, typhoid fever, diarrhoea, acute respiratory infections and measles.
What are the causes and consequences of drought?
A drought is caused by drier than normal conditions that can eventually lead to water supply problems. Really hot temperatures can make a drought worse by causing moisture to evaporate from the soil. Just because a region is hot and dry doesn’t necessarily mean it is going through a drought.
What happens to soil during a drought?
Changes in soil temperature during drought conditions can affect soil organic matter (SOM) decomposition and increase the release of carbon dioxide. Also, during this process additional mineral N, mostly in the form of nitrate, will be released in the soil system.
What are the effects of drought on animals?
Obviously, drought also affects the availability of water. When water is scarce, animals have to travel greater distances to find it. This makes them more vulnerable to predators.
What animals would be affected by drought?
Drought impacts wildlife in many ways:
- Hungry deer, bears, raccoons, and other wild animals search for food.
- Less grass and vegetation growth reduces cover for waterfowl nests and young deer, antelope, and elk, making these animals more vulnerable to predators.
How are humans and animals affected by drought?
Population dynamics incorporate a suite of factors, large and small, but drought can set the system atilt. Severe drought affects many wildlife species in ways that we can relate to with our human experience. Droughts lead to less food and water, as well as deterioration of various forms of cover.
How many animals died in droughts?
A statement about the 480 million animals killed in NSW bushfires since September.