Answer:
Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls.
Explanation:
Other Waterfall Facts:
Without similar protection, the next pool down began to erode, forming a vertical wall between the two—and thus, a waterfall. What's more, Crosby notes, these waterfalls lingered. Each lab-made cascade stuck around for about 20 minutes, a period of time that represents 10 to 10,000 years, according to the study
If the sun were to stop shining, then all the waterfalls in the world would eventually stop. It is the sun which provides all of the energy needed to lift water from the ocean to the head of the river valley so that waterfalls can continually have water falling over them.
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-RosemaryAndStars
<em><u>Wetlands occurring in areas with a large amount of trees are most likely marshes.
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Further Explanation:
The Wetlands are the areas that are flooded by water throughout the year and have oxygen – freeprocesses.It differentiates by the vegetation it has that is mostly the aquatic plants, adapting to unique hybrid soil. Wetlands are responsible for the water purification, processing of nutrients, water storage and support life and stabilizing of shorelines. It is also an ecosystem that supports a great variety of flora and fauna.
The wetland that is characterized by herbaceous vegetationis called marshes that are generally woody plants. Thesevegetation are found on the edges of the wetland and form a transition between the terrestrial and aquatic ecosystem, comprising of grasses, reeds, rushes and shrubby woody plants. The most important component that segregates it from the other wetlands are the swamps, mires that are characterized by acidic peat.
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Answer Details
Grade: High School
Subject: Geography
Chapter: Wetlands
Keywords:Wetlands, oxygen-free, aquatic, plants, hybrid soil, water purification, nutrients, water storage, flora, fauna, herbaceous vegetation
For a surface storm system to intensity, the upper-level low (or trough) should be located to the WEST of the surface low.
As with igneous and sedimentary rocks, metamorphic rocks are classified on the basis of texture (grain size, shape, orientation) and mineral composition. However, the classifiction of metamorphic rocks is more difficult to get into than with igneous and sedimentary rocks, for a couple of reasons.
Answer:
Brain drain is the emigration of individual who are highly proficient or qualified in their field of study .
Explanation:
Brain drain is the emigration of individual who are highly proficient or qualified in their field of study . The departure of these group of professional may be due to better living condition or higher salary.
In other words brain drain is when a country losses it talented or highly skilled or educated workers to other countries through migration. Brain drain is considered a big problem to the society because competent hands migrates to another country causing more economic hardship to the country they left. The emigrants contribute to the expertise of another country. This kind of movement occurs from a developing countries to a developed country.
The impacts of Brain drain on developing countries are numerous but it is more on the negative side.
The phenomenon has caused a harmful effect on developing countries mostly in Africa. As this talented individuals move to a developed countries they become richer and the developing countries becomes poorer. The resulting impact in developing countries are lack of innovation and industrial growth, economic instability which leads to unemployment , Political instability and loss of the country's investment in education , loss of tax revenue and shortage of skilled workers.
The positive impact is that the workers from developing countries tend to improve in skills . Another benefits is remittance; this skilled workers from developing countries might send money home and this might stimulate the economy.
