<u>Answer:
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The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
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- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
Answer:
Yes
Explanation:
Geography skills are very useful in so many different situations and as such, geographers have more than 100 different job titles.
Examples of these skills include;
Ability to read, analyze and construct maps.
Ability to understand and or appreciate the existence of so many diverse cultures.
Ability to solve contemporary issues like urbanization and environmental justice amongst many others.
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.
Answer -<em> A) Health Care, B) Education, C) Enviromental Protection</em>
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