Answer:
The marshes are defined as the type of wetland where the water covers the ground surface for a long period of time. Here, the trees are absent and are mostly dominated by the grasses and other small herbivore plants. They are commonly formed in delta type of environment where the rivers adds water into the seas. It forms an isolated and distinct ecosystem.
The marshes in nature, behaves like a filtration process as the vegetation that are present in marshes takes up more amount of nutrients for their growth and expansion. But, if it does not use up these excess nutrients then it cause water pollution comprising of nitrogen and phosphorous.
They also plays an important role in the reduction of damages that are caused by a flood.
The marshes are sometimes seasonal and it occurs when the height of the river level is relatively high, and it floods the grassland areas.
The marshes are of three types-
(1) Tidal salt marshes
(2) Tidal freshwater marshes
(3) Inland freshwater marshes.
The correct answer is Lake Baikal
Checks and balances keep one branch from overpowering the next.
ex: Executive Branch = Legislative, Legislative = Judicial, Executive = Judicial etc.
Answer:
The epidemiological transition has two stages:
- First, the high mortality caused by infectious diseases and malnutrition;
- The second is characterized by chronic degenerative diseases.
Explanation:
Epidemiological transition is understood as the long-term changes in the patterns of death, disease and disability that characterize a specific population and that usually occur along with broader demographic, social and economic transformations.
It is a dynamic concept that focuses on the evolution of the predominant profile of mortality and morbidity, specifically the epidemiological transition implies a change in the predominant direction: of infectious diseases associated with primary deficiencies (for example, nutrition, water supply, housing conditions) to chronic and degenerative diseases, injuries and mental illnesses, all these related to genetic factors and secondary deficiencies (for example, personal or environmental security effect of opportunities for the full realization of individual potentiality)
The epidemiological transition covers three basic processes:
a) Substitution between the first causes of death of common infectious diseases by noncommunicable diseases and injuries.
b) The displacement of the greatest burden of morbidity and mortality from the youngest groups to the elderly.
c) Changes from a situation of predominance of mortality in the epidemiological landscape to another in which morbidity is dominant.
